Obama's Early Brush With Financial Markets A little-known chapter in Sen. Barack Obama's life is the year he spent writing about financial markets for a New York City firm. The job gave him a crash course in market economics — knowledge that some say is still evident on the campaign trail. Windows Media RealPlayer

Pentagon Developments On Iran, Air Force Tankers Iran's missile test comes during the same week that the U.S. made progress on a missile defense system in Europe. One of the system's goals would be to defend against Iran's missiles. Meantime, the Pentagon is expected to announce whether the Air Force will take new bids to build refueling tankers. Windows Media RealPlayer

Iran Test-Fires Missiles In Show Of Defiance Iran test-fired missiles Wednesday, an exercise that Iranian officials say was a response to hostile rhetoric from the United States and Israel. Windows Media RealPlayer