The Supreme Court takes up a major case Wednesday stemming from the war on terrorism. At issue is whether former Attorney General John Ashcroft is entitled to immunity from a lawsuit claiming he misused the law to arrest a U.S. citizen under false pretenses.
A federal appeals court panel composed of all Republican appointees ruled 2-1 that the case should proceed to trial because the allegations, if true, are "repugnant to the Constitution." The Obama administration appealed to the Supreme Court.
In Afghanistan, the American military plays a chess game with the enemy: Insurgents plant deadly roadside bombs — often called improvised explosive devices, or IEDs. The Americans find ways to detect them.
Then the insurgents make their move, coming up with new ways to conceal them.
American military officials have spent billions of dollars trying to solve the problem of roadside bombs. They have come up with electronic jammers to block the signal that sets the bombs off. They use dogs to sniff out the bombs' components.
Loggerhead turtles are born with an ability to know where they are on Earth, and which way to swim to get to favorable feeding grounds. That's the conclusion from a new study by scientists at the University of North Carolina at Chapel Hill.
The turtles appear to accomplish this by being exquisitely sensitive to the Earth's magnetic field. Humans using a compass can also tell which ways is north, "but a compass doesn't really tell you where you are," says UNC graduate student Nathan Putman.
In Libya, Moammar Gadhafi's regime may be hanging on longer than many analysts expected, but few people doubt that at some point it will fall.
The big question swirling around Washington is who or what will fill the void. The United States only renewed ties with Libya a few years ago — and it is scrambling to identify the next power broker there.