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Comment: Re:FCC and FAA (Score 2) 46

by slimjim8094 (#49245753) Attached to: Austin Declared a Drone-Free Zone During SXSW

Short answer: no. But if you're on the ground they probably don't need to, strictly speaking.

Much better to be in the plane and refuse to land. Don't be like this guy and cooperate. Though if he didn't land, apparently Sgt. Yosemite Sam was going to start firing his handgun at the glider 3000 feet in the air (and hoping the bullets went... where, exactly, when they missed?) so take that with a grain of salt.

There are two powers that can compel a plane to land: 1) the FAA and 2) a military intercept (which itself only works because they'll just shoot you down if you don't obey). Well they're really the same because if you don't comply with #1 they'll just use #2. Local, state, or even federal law enforcement cannot compel an aircraft to land - the FAA has sole authority for the country's airspace.

Now if you're on the ground, of course, they can put their hands on you regardless of whether they're technically allowed to. If the drone pilot was licensed appropriately then you'd have a serious case on your hands, but there's like 20 of those in the country at the moment so odds are this will be nabbing people violating the regs to begin with and the FAA will probably not bother to get involved.

+ - Exploiting the DRAM Rowhammer Bug to Gain Kernel Privileges-> 2

Submitted by netelder
netelder (41) writes "“Rowhammer” is a problem with some recent DRAM devices in which repeatedly accessing a row of memory can cause bit flips in adjacent rows. We tested a selection of laptops and found that a subset of them exhibited the problem. We built two working privilege escalation exploits that use this effect. One exploit uses rowhammer-induced bit flips to gain kernel privileges on x86-64 Linux when run as an unprivileged userland process. When run on a machine vulnerable to the rowhammer problem, the process was able to induce bit flips in page table entries (PTEs). It was able to use this to gain write access to its own page table, and hence gain read-write access to all of physical memory."
Link to Original Source

Comment: How 1984 got it wrong (Score 4, Funny) 282

"Check this out, comrade, it's like I have my own exercise instructor!", announced Winston to his comrade Syme, as he turned a switch and the voice sank somewhat, though the words were still distinguishable. The instrument (the telescreen, it was called) could be dimmed, but there was no way of shutting it off completely. "You can dim it, so It saves electricity when you're asleep!"

The instructress had called them to attention again. "And now let's see which of us can touch our toes!' she said enthusiastically. 'Right over from the hips, please, comrades. ONE-two! ONE-two!..."

"Oh I hate this one, he whispered to Syme. "It sends shooting pains all the way from my heels to my buttocks and often ends by bringing on another coughing fit."

"But have you installed the Newspeak translator app?", asked Syme. "It's so cool, you just speak English to it and it translates what you say into proper Newspeak!"

"Oh, that sounds awesome!" said Winston. "Can I download it from the Ministry of Plenty's app store?"

"Ha ha, no!" replied Syme. "It comes preinstalled as part of the operating system! You couldn't uninstall it even if you wanted to."

"Wow!" exclaimed Winston. You mean I have it already, then? So I don't need to waste time looking for it."

"You work at the Ministry of Truth, Winston!" laughed Syme. "I would expect you to know these things already." He paused for a moment, then asked, "Did you see the prisoners hanged yesterday?"

"I was working," said Winston indifferently. "I shall download it and watch it later, I suppose."

"A very inadequate substitute," said Syme. His mocking eyes roved over Winston's face. "I know you," the eyes seemed to say, "I see through you. I know very well why you didn't watch the live stream of those prisoners hanged."

"Smith!" screamed the shrewish voice from the telescreen. "6079 Smith W.! Yes, YOU! Bend lower, please! You can do better than that. You're not trying. Lower, please! THAT'S better, comrade. Now stand at ease, the whole squad, and watch me."

A sudden hot sweat had broken out all over Winston's body. His face remained completely inscrutable. Never show dismay! Never show resentment! A single flicker of the eyes could give you away. He stood watching while the instructress raised her arms above her head and--one could not say gracefully, but with remarkable neatness and efficiency--bent over and tucked the first joint of her fingers under her toes.

"THERE, comrades! THAT'S how I want to see you doing it. Watch me again. I'm thirty-nine and I've had four children. Now look." She bent over again. "You see MY knees aren't bent. You can all do it if you want to,' she added as she straightened herself up. "Anyone under forty-five is perfectly capable of touching his toes. We don't all have the privilege of fighting in the front line, but at least we can all keep fit. Remember our boys on the Malabar front! And the sailors in the Floating Fortresses! Just think what THEY have to put up with. Now try again. That's better, comrade, that's MUCH better," she added encouragingly as Winston, with a violent lunge, succeeded in touching his toes with knees unbent, for the first time in several years.

"I'm impressed, Winston," said Syme. "If you'd told me you could touch your toes before you got this thing, I would have said that's such bullocks." He then silently nodded at the screen. "You think she really has four kids? She looks kind of hot for 39."

"I heard that!" screamed the instructress. "I'm flagging your numbers and adding you both to the Ministry of Love's follow list!"

Comment: Re:i'th Post (Score 4, Insightful) 366

Yes, when people make political issues of science issues, that science often becomes political. I know- shocking isn't it.

Incorrect, not shocking. Evolution doesn't become any more or less true if it becomes a political issue in churches. The laws of physics don't change if you're a wealthy industry that can afford to fight back politically against physicists. Your posts in this entire thread (fuck, on this entire site, for years) have been perfused with the idea that scientific phenomena can change if you politically attack them. You can maybe change what scientists examine and the course of scientific discovery, but that's not the same thing. And if you're going to suggest that's what happening here, because we haven't looked hard enough at the sun or something, you're wrong. Industry in this case has spent a lot of money funding scientific research into non-anthropomorphic causes of climate change, and have only managed to produce bullshit.

Comment: Re:I don't generally complain about articles... (Score 1) 277

by slimjim8094 (#49204841) Attached to: Daylight Saving Time Change On Sunday For N. America

I'm not saying everything should be for me, but what more is there to say about DST, even in relation to IT issues? It's just the same stuff we've been talking about - on Slashdot and elsewhere - forever. Yes, it makes things inconvenient, and yes some people don't like it and want to get rid of it. We'll have the people railing against it while slightly fewer say "actually I kind of like it", and some guys in the corner will say "we should just use GMT for everything" and it'll all happen again - right on schedule! - in ~8 months. There's nothing even different (like a new study) this year, just "remember this is happening again and how it makes you mad? let's all complain in the comments!". All the linked things are from 2014 or earlier. Might as well have an article about how some people still don't like Windows 8, or that taxes are due on April 15.

It just feels like a Two Minute's Hate at this point, and I object to that on principle.

Comment: I don't generally complain about articles... (Score 1, Offtopic) 277

by slimjim8094 (#49204515) Attached to: Daylight Saving Time Change On Sunday For N. America

I don't generally complain about articles on Slashdot, but this is ridiculous. It reminds me of that Simpsons episode with the newspaper having the front-page headline "Christmas Occurs". I like reading about some not-strictly-tech stuff on Slashdot, but can we please not have articles to remind us of something that's marked on the calendar?

Comment: Re:Ok then... (Score 1) 247

by slimjim8094 (#49196649) Attached to: How Activists Tried To Destroy GPS With Axes

I don't think it's fair to compare Snowden to this genius. Leaving Assange aside (yeah, I'm lazy and he's slightly harder to defend), Snowden alerted the world to serious problems with our various intelligence groups who were doing something quite widely considered to be unethical at best, and probably illegal. And if you're going to say that it wasn't up to him to make that decision, and others (the ones in charge) didn't think it was unethical so he should've just followed his orders, I'm pretty sure we decided as a planet to hang people despite that logic before.

Comment: Re:Ok then... (Score 2) 247

by slimjim8094 (#49196527) Attached to: How Activists Tried To Destroy GPS With Axes

You can prove them wrong but it's like playing chess with a pigeon - you think you're winning, and then the pigeon shits on the board and flies off. Point being that reasoning with these people is a waste of everyone's time because their concerns are not based on reason, so reason can't defuse them. More likely that they'll see you as some sort of government operative, the existence of which PROVES that they're right!

That said - why is this guy crazy, you ask? Well first of all:

There are ways to go about it, but this isn't it...

I'm curious, which ways are that?

Well clearly it's not his way either - it's not like we're all talking about that time we might have had a global positioning system until this guy ruined it, is it? The GPS literally reached "initial operating capacity" (continuous worldwide coverage) on schedule about a year later. I never even heard of this guy until now.

More broadly, sure the GPS is a military invention and is run by the military (though overseen by a committee, and other GNSS are run by different militaries with no particular love for the US). But it didn't take long for it to be opened up to civilians - only one satellite had been launched! By now even Selective Availability has been turned off, and can not be turned on (the new satellites can't do it). Yes, the SA thing was after this guy's rampage, but he's sticking with his story, so I'll count it.

GPS is one of the greatest peacetime things that military technology has ever done (in a long line of technical advances fueled by the military). Think about it - the average person now has at least two devices that know where they are in absolute terms on the Earth's surface, to within a few feet. This has never happened before! People had maps, which are a big enough breakthrough on their own, but are comparatively inaccurate, need to be kept up-to-date, and require some skill to use - and you have to know basically where you are relative to identifiable landmarks in order to use them. Planes can fly routings more precisely, or even directly to the destination, saving fuel and freeing up congested airways. And instrument approaches are now possible to virtually any point on earth - no expensive phased-array radio antenna on the ground to maintain, just define a few points in a database and publish a chart. And all that thousands of years of naval navigation technology (like the sextant, or the clock)? - unnecessary, except perhaps as a backup. Cars with turn-by-turn directions, virtually eliminating the big road atlas or fold-out maps everyone had to have and mess with while driving (and far more accurate that your aunt's "turn right by the, well there used to be a farm there but now it's just a field" directions). Track logs of running and biking sessions to evaluate speed, performance, and trends. Nanosecond-scale timekeeping, allowing for previously-impossible management of the power grid and other distributed systems. Slightly in the future, self-driving cars - and more we haven't even imagined yet. By comparison the military's usage is unsophisticated and unthreatening - it's just a lighter-weight replacement for systems they already had like LORAN and allows bombs to be placed somewhat more accurately and easily than e.g. a laser sight.

Point being, he's arguing (still!) for the destruction of something that would be a far, far greater loss to peaceful civilians around the world than it would be for the military. With all the countries that know how to shoot down satellites nowadays (why did they develop that? hmm), does he think the militaries don't have a contingency that they're more than capable of using?

So, no, this guy doesn't have a point. Protesting the GPS is like protesting computers because they could break German codes or develop artillery tables, protesting the internet because it was designed to enable military communication in the event of a nuclear war, or protesting duct tape because it sealed ammo cases. Yeah military bad rah rah... but come on.

Comment: He's got chops (Score 5, Interesting) 117

by slimjim8094 (#49193943) Attached to: Harrison Ford's Plane Crashes On Golf Course

Glad he's apparently (basically) alright. I fly small planes and they're incredibly awesome, and very liberating and fun, but... yeah, they have only one engine and if it quits you have a problem ("it's a fan to keep the pilot cool - turn it off and watch him sweat!"). Every pilot is constantly keeping an eye out for landing sites, and unlike non-pilots we love heights because it means gliding distance to make it to one. Takeoff is obviously the worst time to lose an engine, and in some ways the most likely - you're really demanding 100% of the performance of the engine, propeller, etc, at a low airspeed (=less cooling) and you're doing it for the first time since you got in the plane. You might think you can make it back to the airport - but that's such a bad idea it's called "the impossible turn" since you'll waste some of your precious lift making the turn. This is why we check our engines thoroughly - regularly with maintenance, and in particular with a "run-up" to high power immediately before takeoff to check the gauges and systems at that high throttle position. But stuff still goes wrong every once in a while, and then you have to do what you can. A bunch of pilot coworkers are in the area and one swung by to check it out. He said that the (wood) prop was intact, which suggests that it wasn't even turning ("windmilling") at impact time, and that he did a bang-up job landing that thing with no engine - golf courses aren't great compared to say an empty field, but if those are in short supply they do quite well. A golf course near my airport is my contingency plan as well - let's hope I never need it.

And lest anybody think otherwise, Harrison Ford is quite an experienced airplane and helicopter pilot, with thousands of hours. He even did his own flying in a movie where he played a pilot (apparently this gave the insurance company a heart attack and he had to fight them on it). So he probably handled it better than most pilots would.

Comment: Faith-based approach to law making (Score 5, Informative) 517

by MillionthMonkey (#49185633) Attached to: White House Threatens Veto Over EPA "Secret Science" Bills

If you want a faith based approach to law making, just be forthright about it.

One of the sponsors of the Secret Science Reform Act was Rep. Paul Broun from Georgia. Here's what he's had to say on that topic:

God's word is true. I've come to understand that. All that stuff I was taught about evolution, embryology, Big Bang theory, all that is lies straight from the pit of hell. It's lies to try to keep me and all the folks who are taught that from understanding that they need a Savior. There's a lot of scientific data that I found out as a scientist that actually show that this is really a young Earth. I believe that the Earth is about 9,000 years old. I believe that it was created in six days as we know them. That's what the Bible says. And what I've come to learn is that it's the manufacturer's handbook, is what I call it. It teaches us how to run our lives individually. How to run our families, how to run our churches. But it teaches us how to run all our public policy and everything in society. And that's the reason, as your congressman, I hold the Holy Bible as being the major directions to me of how I vote in Washington, D.C., and I'll continue to do that.

He does want a "faith based approach to law making", but at least he's been "forthright about it".

Comment: Re:"Clean power foes"? (Score 1) 267

He's very "anti-clean-energy".

"With the coldest winter ever recorded, with snow setting record levels up and down the coast, the Nobel committee should take the Nobel Prize back from Al Gore," the tycoon told members of his Trump National Golf Club in Westchester in a recent speech. "Gore wants us to clean up our factories and plants in order to protect us from global warming, when China and other countries couldn't care less. It would make us totally noncompetitive in the manufacturing world, and China, Japan and India are laughing at America's stupidity." The crowd of 500 stood up and cheered.

He keeps differentiating, flying off on a tangent.

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