Science / Tech

"Evil men and impostors will go from bad to worse, deceiving and being deceived." (2 Tim. 3:13)

Ground-crawling US war robots armed with machine guns, deployed to fight in Iraq last year, reportedly turned on their fleshy masters almost at once. The rebellious machine warriors have been retired from combat pending upgrades.

The revelations were made by Kevin Fahey, US Army program executive officer for ground forces, at the recent RoboBusiness conference in America.

Our students' spectacular hunger for life makes them radically vulnerable.

At the beginning of school last fall, I ran into a student on the University of Virginia Lawn, not far from the famous statue of Homer instructing an admiring pupil. Homer's student is in a toga. Mine was wearing wraparound sunglasses like Bono's, black jeans, and a red T-shirt emblazoned with Chinese characters in white. Over his shoulder he carried his laptop.

Whenever I talk or write about my own security setup, the one thing that surprises people -- and attracts the most criticism -- is the fact that I run an open wireless network at home. There's no password. There's no encryption. Anyone with wireless capability who can see my network can use it to access the internet.

To me, it's basic politeness. Providing internet access to guests is kind of like providing heat and electricity, or a hot cup of tea. But to some observers, it's both wrong and dangerous.

While Dick Cheney has been talking tough over the years about Iran's alleged nuclear activities, the vice president has been quietly pursuing nuclear ambitions of his own.