New generation GPS satellite starts tests in Colo.

A $5.5 billion upgrade to the Global Positioning System moved a step closer to launch this week when a prototype arrived at a Lockheed Martin complex in Colorado to begin months of tests.

Cyber weaknesses should deter US from waging war

(AP) -- America's critical computer networks are so vulnerable to attack that it should deter U.S. leaders from going to war with other nations, a former top U.S. cybersecurity official said Monday.

Symantec warns of new Stuxnet-like virus

US security firm Symantec has warned of a new computer virus similar to the malicious Stuxnet worm believed to have preyed on Iran's nuclear program.

Neutron bomb inventor Samuel Cohen dies in LA

(AP) -- Neutron bomb inventor Samuel T. Cohen, who designed the tactical nuclear weapon intended to kill people but do minimal damage to structures, has died, his son said Wednesday.

Laser shoots down drones at sea (w/ Video)

(PhysOrg.com) -- An infrared laser developed by Arizona company Raytheon Missile Systems has been demonstrated shooting down incoming drones over the ocean off the coast of California.

Glitch shows how much US military relies on GPS

A problem that rendered as many as 10,000 U.S. military GPS receivers useless for days is a warning to safeguard a system that enemies would love to disrupt, a defense expert says.

India announces long-range nuclear-capable missile test

India will test a nuclear-capable missile with a range of over 5,000 kilometres (3,000 miles) within a year, its top military scientist said Wednesday, risking a rise in regional tensions.

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