By Allan Lengel
ticklethewire.com
Federal authorities in the Post 9/11 era have long worried about people training in al Qaeda camps and coming to the U.S.

But the Associated Press reports a disturbing trend of Somalian American youth returning home to fight for an Islamist militia linked to al Qaeda.

The latest, the wire service says, comes with news of the FBI focusing on an American teen in the bombing of one of two stolen U.N. vehicles that killed 21 in Somalia at a peacekeeping base.

Agents have apparently visited the Seattle home of the youth to check into the matter.