A rally on Saturday to protest the war in Iraq, which began with a peaceful march of several thousand people to the Capitol, ended with dozens of arrests in a raucous demonstration that evoked the angry spirit of the Vietnam era protests of more than three decades ago. The police, including some officers dressed in riot gear, tried to halt demonstrators as they sought to climb over a low wall near the Capitol after a march that had begun near the White House in a festive atmosphere. Full Story