A B-2 Spirit proceeds to an undisclosed location after flying a mission over Iraq, March 27, 2003. A U.S. B-2 bomber on Friday dropped two earth-shattering 4,600-pound (2,086 kg) &quot;bunker-buster&quot; bombs on a downtown Baghdad communications tower, defense officials said. it was the first use of the big bombs in a week-long pounding of the Iraqi capital. U.S.-led jets and ships have used more than 5,000 bombs and missiles against Baghdad and across Iraq in a war to depose President Saddam Hussein. REUTERS/Cherie A. Thurlby/U.S. Air Force