Omar Hammami is one of 14 U.S. citizens indicted last year on terrorist conspiracy charges . He moved from a small town in Alabama to a leadership role in Somalia . Some experts say extremist groups are battling for the hearts and minds of young U.S. Muslims .
Omar Hammami is one of 14 U.S. citizens indicted last week on terrorism conspiracy charges . Hammami went from a small town in Alabama to a command role in Somalia . Terrorism experts say extremist groups are battling for the hearts and minds of young U.S. Muslims .