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Robots from around the world are competing in a Pentagon-sponsored robot "Olympics" this weekend. The challenge is to build a robot that can do human tasks and even go into disaster zones.

Downwind Abbey, Century 21 BC, Hi, My Name is James.

Russia's most famous prisoner, former oil magnate Mikhail Khodorkovsky, was freed Saturday and flown to Germany. Russians are wondering why the former oil magnate asked for a pardon after years of denying guilt.

NASA reports that things went well in Saturday's 5-1/2-hour spacewalk, with two American astronauts removing a pump from the International Space Station Saturday in an effort to repair a faulty piece of cooling equipment.

Clara Gantt, 94, held out hope for a happy ending for six decades. On Friday, her hope faded, but she received closure, when the remains of her husband were flown back home.

About 2 million debit accounts will be affected. The bank took the step after Target revealed the security of millions of cards used at its stores may have been compromised. Apologizing for the breach, Target offered a 10 percent discount this weekend.

The Obama administration released documents that shed some light on the programs' inception. It also reveals that both the Obama and Bush administrations believe the surveillance programs are important and should be kept secret.

On Dec. 19, 1958, a pre-recorded message from President Dwight D. Eisenhower was sent out from a satellite via short wave. It offered hopes for peace on earth and goodwill toward men everywhere. Of course, it also let the Soviets know the U.S. was catching up in the space race.

It was another tough week for the National Security Agency. First, a federal judge said some of the NSA's surveillance activities were "likely unconstitutional." Then, a White House panel recommended that NSA activities in the U.S. and abroad should be significantly reined in. Host Arun Rath speaks with Wall Street Journal reporter Siobhan Gorman about the week's news and the future of the NSA.

By the end of December, interns are nearing the midpoint of their first year of intense, hands-on work with patients. That's long enough for the young doctors to feel committed to their chosen career but not nearly far enough along to see the finish line.