Police gather outside the Capitol plaza in Washington Monday, Sept. 18, 2006, after a car was driven through a security checkpoint. A man crashed his vehicle into a security barricade at the Capitol, ran into the building and was arrested, forcing the complex to briefly be locked down, authorities said. (AP Photo/Dennis Cook)
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A U.S. Capitol police officer stops traffic after the U.S. Capitol was shut down in Washington September 18, 2006. The U.S. Capitol was shut down briefly on Monday after a man was arrested for racing past security into the building, Capitol police said. He was captured just inside the building. The building was closed for a search but it was opened within an hour, the police said. REUTERS/Larry Downing (UNITED STATES)