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+ - Meet the Muslim-American Leaders the FBI and NSA Have Been Spying On->

Submitted by Advocatus Diaboli
Advocatus Diaboli (1627651) writes "The National Security Agency and FBI have covertly monitored the emails of prominent Muslim-Americans—including a political candidate and several civil rights activists, academics, and lawyers—under secretive procedures intended to target terrorists and foreign spies."
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+ - Alcatel-Lucent's XG-FAST Pushes 10,000Mbps over Copper Phone Lines

Submitted by Mark.JUK
Mark.JUK (1222360) writes "The Bell Labs R&D division of telecoms giant Alcatel-Lucent has today claimed to set a new world record after they successfully pushed "ultra-broadband" speeds of 10,000 Megabits per second (Mbps) down a traditional copper telephone line using XG-FAST technology, which is an extension of G.fast (ITU G.9700).

G.fast is a hybrid-fibre technology, which is designed to deliver Internet speeds of up to 1000Mbps over shorter runs of copper cable (up to around 250 meters via 106MHz+ of radio spectrum). The idea is that a fibre optic cable is taken closer to homes and then G.fast works to deliver the last few metres of service, which saves money because the operator doesn't have to big up your garden to lay new cables.

By comparison XG-FAST works in a similar way but via an even shorter run of copper and using frequencies of up to 500MHz. For example, XG-FAST delivered its top speed of 10,000Mbps by bonding two copper lines together over just 30 metres of cable. But this might be a problem for commercial operators, which will want to maximise profits by using more copper to reach more homes and not less."

Comment: Re: Failsafe? (Score 1) 464

If the system is down so far as needing that, then it's already crashing i'd suspect. There are no parachutes as a failsafe either.

I give you SAS flight 751. Both engines out, no power to the instruments. "Landed" using the windows and a mechanical artificial horizon. No fatalities (but a few severe injuries, unfortunately).

Comment: Re:Classic $Politician (Score 4, Insightful) 211

Obama seems to be the first mainstream US presidential candidate in a long time to "talk the talk" to the kind of people who read Slashdot. The others have been spouting ignorant crap or simply ignoring the topics that most Slashdotters care about. Therefore Obama is the first president that we can be disappointed in -- the others were known bad before they became presidents.

Comment: Re:You don't know... (Score 2) 65

File system drivers in general are not properly security vetted. You can do interesting stuff to a Linux box if you put ext4 on a fake device and start messing with what is on the disk while it is being read. Many device drivers have similar problems; you could find a Linux device driver with a problem and make a fake piece of hardware resembling the real thing while exploiting the bug.

This is pretty much unfixable. While most core OS code is of a high quality these days, there is just too much driver code around. A proper audit is infeasible.

Besides, Thunderbolt makes it pointless. With Thunderbolt, you do not need to exploit anything, the bus provides you with unlimited access.

It is a sad state of affairs really.

Comment: Re:waste of time (Score 1) 380

by amorsen (#47328241) Attached to: New Chemical Process Could Make Ammonia a Practical Car Fuel

100% electric cars with electrical-output-only generators have been proven to get unbelievable gas mileage and range in Europe so that's not a bad idea.

Name one. E.g. the BMW i3 has absolutely horrendously bad mileage on gas, and practically everything else is a parallel hybrid, not a serial.

Comment: Re:What a great idea! (Score 1) 230

by amorsen (#47222337) Attached to: Musk Will Open Up Tesla Supercharger Patents To Spur Development

Right, so your assumption is that petrol engines are more efficient at partial load than diesel engines. This assumption is wrong, diesel suffers less from partial load.

Gearing for 1500-2000RPM means that each gear is 4/3 as high as the previous, which means that a 6-speed box with a first-gear speed of 10km/h at 750RPM will hit 110km/h at 2000RPM. Add an seventh and you are golden; once you hit 150km/h you will need to go beyond 2000RPM to have enough power anyway.

Typical parallel hybrids have continuously variable transmissions. They always run at the most efficient RPM for the needed power, just like serial hybrids.

Comment: Re:What a great idea! (Score 1) 230

by amorsen (#47215919) Attached to: Musk Will Open Up Tesla Supercharger Patents To Spur Development

You are still trying to talk around the fact that diesel engines in traditional cars are not even 50% more efficient than petrol engines, combined with the fact that diesel engines benefit less from hybrid drive than petrol engines. Therefore diesel hybrids will not be 50% more efficient than petrol hybrids.

Serial hybrids look decidedly pitiful so far, the BMW i3 does something like 7l/100km on petrol.

There is nothing so easy but that it becomes difficult when you do it reluctantly. -- Publius Terentius Afer (Terence)

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