A man places a U.S. flag on his shirt while receiving proof of U.S. citizenship during a ceremony in San Francisco

 
A man places a U.S. flag on his shirt while receiving proof of U.S. citizenship during a ceremony in San Francisco
A man places a U.S. flag on his shirt while receiving proof of U.S. citizenship during a ceremony in San Francisco, California January 30, 2013. REUTERS/Robert Galbraith