Martyn WilliamsSenior U.S. Correspondent, IDG News Service

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Martyn Williams covers Silicon Valley and general technology breaking news for the IDG News Service, and is based in San Francisco.

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Space X fails again at a sea landing

For the fourth time, Space X has failed at the difficult task of landing a rocket on a platform bobbing up and down in the middle of the ocean.

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US says cyber battle against ISIS will 'black these guys out'

The U.S. is aggressively targeting ISIS in cyberspace, attempting to halt the group's ability to communicate electronically, Secretary of Defense Ash Carter said Thursday.

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The U.S. military is shooting these creepy robot dummies to make better Marines

They're not the kind of thing you might expect to see on a battlefield, but a four-wheeled robot recently tested by the U.S. Marines could help make better soldiers.

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DOD to invite security experts to Hack the Pentagon

The Department of Defense plans to ask computer security experts to Hack the Pentagon as part of a push to improve its cyber defenses.

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Eric Schmidt to head new Pentagon innovation advisory board

Alphabet chairman Eric Schmidt will head a new DOD advisory board aimed at helping the U.S. military forge closer ties with Silicon Valley.

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FBI director admits mistake was made with San Bernardino iCloud reset

The director of the Federal Bureau of Investigation has conceded it was a mistake to ask San Bernadino County to reset the password of an iCloud account that had been used by gunman Syed Farook.

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DJI's Phantom 4 drone avoids obstacles, tracks humans

The latest drone in DJI's popular Phantom series can track humans and dodge obstacles. The enhancements make the Phantom 4 one of the most advanced consumer drones on the market, and further lower the barrier to flight for most consumers. But the technology comes with a sizable price tag.

People trusted this robot in an emergency, even when it led them astray

pcworld.com

When it comes to robots, humans are perhaps a little too trusting. In a series of experiments at Georgia Tech that simulated a building fire, people ignored emergency exit signs and followed instructions from a guidance robot—even after being told the robot was faulty.

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VR just got serious and you should be paying attention

If you haven't been paying much attention to virtual reality, now might be a good time to start. In a series of announcements at Mobile World Congress in Barcelona this week, some of the biggest names in smartphones, consumer electronics and social media have given the technology a major boost.

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Xiaomi's U.S. debut is 'on the radar,' says Hugo Barra

China's top smartphone maker is thinking about launching its phones in the U.S., the head of its international business said Wednesday.

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Xiaomi unveils low-cost, high-powered Mi 5 smartphone

The first new flagship smartphone in over a year from China's Xiaomi packs technology to match the iPhone 6 and Samsung Galaxy S7, but at around half the price.

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Facebook to begin testing its Internet drone this year

Facebook will begin test flights of its solar-powered Internet drone later this year, CEO Mark Zuckerberg said on Monday.

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Despite setbacks, Facebook is still committed to India, Zuckerberg says

Despite the recent government-mandated halt of its Free Basics Internet program, Facebook will keep on working in India's telecommunications sector, CEO Mark Zuckerberg said on Monday.

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Why 2016 could finally be the year upgradable phones become reality

LG's new G5 smartphone comes with an innovative feature: the ability to plugin and remove hardware modules that add extra functionality to the phone.

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Your cat will love LG's laser pointer-equipped rolling robot

One of the most fun smartphone accessories to come out of this year's Mobile World Congress expo has to be LG's Rolling Bot. It's a spherical ball that rolls around on command from a smartphone, and includes a camera and laser pointer.