A man holds a sign during a rally held to support a proposed Muslim cultural center and mosque near the World Trade Center site in New York in this August 22, 2010 file photo. The vast majority of U.S. mosque leaders say radicalism is not on the rise among Muslim youths as Islam is increasingly integrated into American society, according to a survey released on February 29, 2012. REUTERS/Jessica Rinaldi/Files (UNITED STATES - Tags: RELIGION SOCIETY)