A heartbeat can theoretically be traced, at least to the last RF transmitter in the chain. If that's WiFi, it's a few hundred meters at most. If it's typical home automation, it's 20 meters or so. So, if the Evil Midnight Bomber is being watched, the messages originating from him could be noticed. It's definitely not the stealthiest of options.

Yes, a transmitter putting out a watt or two would lead to the needle in the haystack scenario, but the bad guys aren't doing that yet.

They didn't qualify it at all. That was the editor who wrote the story, and the Slashdot editor who quoted the story. Neither quoted it from the report. https://opencryptoaudit.org/re...

Yes, the NSA has been accused of colluding with RSA to promote the Dual_EC_DRBG random number generator as a standard, despite claims that it contained a backdoor. https://en.wikipedia.org/wiki/... . The NSA has also been accused of interfering with standards that would enable ubiquitous effective encryption for popular communications tools, such as phones and email, resulting in the current hodgepodge of patchwork. Sure, you may use TLS to send and retrieve your email to and from your ISP, but the data is unencrypted in their servers, and is vulnerable to interception there. Your cell calls may be encrypted, but Chris Paget demonstrated at DEFCON how easy that is to defeat, using his almost legal homemade version of a Harris Stingray. And the encryption algorithms used by cell phones only protect the data flying over the airwaves, not on the cellular wired infrastructure which is already required to be vulnerable by CALEA.

However, the existence of one backdoor in one algorithm does not prove or disprove the existence of backdoors in other algorithms. Most exploitable weaknesses we do know about come from either protocol flaws or implementation errors, and these auditors found evidence of neither.

According to the article in Nature at http://www.nature.com/news/exo... , it only improves normal walking speed on level ground.

Which is too bad. My sister in law's right side was mostly paralyzed by a stroke. She shuffles around, swinging her body weight on her good leg, and is quite the effort. I was hoping this could help her, but given her gait it's unlikely.

And you wouldn't get them from this. This reduces the amount of exercise your muscles do, not increases it.

The funniest thing is that every story is filled with comments from whingers who don't realize they're being trolled by Slashdot. The editors are no doubt sitting in a conference room, keeping score on all of the comments. Maybe they've even turned it into a drinking game where they drink every time someone types 'stop', and have to chug for each goatse.

YHBT. HTH. HAND.

That's a premature pronouncement, too. My Windows tablet is also now my laptop, just smaller and lighter. Not as light as my iPad, but the iPad has been relegated to a desk drawer because it's essentially useless compared to carrying around a tablet with a fully functioning OS.

If Apple were to install OSX on the iPad family of devices, that would indeed change the game again. But that would mean cutting into their insanely lucrative monopoly with their App Store model, so that's not likely to happen.

If you have a business use for what they can print today, you already have one, and are likely contemplating buying a better one. If you have a personal use for the parts they can print, you probably already own one. And even if you don't have a real use for them, you may have one as a cool toy. But not everyone is going to buy the same toys as you.

Once they get a lot more capable (maybe not Star Trek replicator capable, but substantially better than they are now) then they'll become ubiquitous. Until then, not everyone needs one. I'm thanking you now for being an early adopter, but don't expect me to join you yet.

The problem is they're too limited. They have to get more capable, not faster, in order to meet my needs. If they can insert circuitry, maybe I can print things that are somewhat more useful. As of right now, I have needed exactly one 3D printed thing (a battery holder for an electronic project, which a friend provided gratis.) But at no point in the last five years have my needs for small plastic things added up to the $300 price of a Simplebot, let alone a printer with better quality, resolution, size, or capabilities.

Maybe you have kids who need thousands of plastic army men. Maybe you are in a business where fabricating prototypes is valuable to you. Great for you, I'm glad you have a use for one. Hopefully you'll help drive volume so the costs come down even further. But as they stand today, they're too expensive for anything I need, and would take up more storage space than I want to waste on a toy.

It has nothing to do with thinking big or small. I'm sorry you can't imagine a scenario different from your own experience.

None at all. Drivers aren't that stupid, and still maintain enough control over their car to react appropriately.

You, however, might be so stupid that you'd slam on your own brakes to 10 MPH just to make another idiotic point, at which point you get rear-ended by an 18-wheeler who is unlucky enough to be following you. Fortunately, there is only one you, so the gene pool will be thinned out to the point where this situation won't repeat.

I simply don't need a bunch of small plastic tchotschkies, no matter how fast I can print them.

There's a big difference between uranium and a working hydrogen bomb. The US won't use nukes unless someone else detonates one first.

Ford has had that for years now. It's called 'Adaptive Cruise Control', and uses radar to maintain a preset minimum following distance.

I have it on my 2011 Ford, and while it's nice, it can only be set to following distance, not time. I want to set it for a two second gap, but my choices are 22, 44, or 66 yards. It's too close for high speeds, but too long for low speeds.

(sorry, Dr. Ford, not Broad)

Devil's Advocate here, but maybe the reason is that all kinds of data is out in public, and some of it is likely flawed. Maybe there's a paper that theorized that you could set a Dewar's flask of liquid hydrogen next to an A-bomb to get an H-bomb. But Dr. Broad is a respected authority, and if he says "we did it this way" without mentioning the Dewar's flask idea, a rogue state would know what not to try.

Remember, these guys get about one shot to get their test explosion right, because in about an hour after a successful test of an H-bomb by anyone the US considers a threat the USAF is going to be raining actual working H-bombs on their entire nuclear program, with a few diverted to cover the presidential palace, the parliament, and essentially every researcher and civilian within a 20-km radius of the aforementioned targets. The US will not tolerate a new state of MAD with a new non-Western-approved government.