Anti-NATO activists are seen through the streets of Strasbourg, France, Saturday April 4, 2009 during an anti-NATO protest, while world leaders were meeting nearby to mark NATO's 60th-anniversary. Police clashed with protesters, firing tear gas and flash bombs at protesters who were throwing Molotov cocktails and rocks, within 2 miles (3 kilometers) from the gathering of world leaders for NATO's 60th-anniversary summit.