Panic as police shoot armed man at US Capitol

Police shot an armed man at an entrance of the US Capitol visitor center Monday, sparking panic during the busy spring tourist season in a city on heightened alert following terror attacks in Brussels. The incident prompted an hour-long lockdown on Capitol Hill in the heart of Washington, where staffers and frightened visitors were ordered to shelter in place. Congress is in recess this week for the Easter holiday, but it is a busy week for tourists in Washington, with the city's famed flowering