identifying a very simple pipeline of recruits. many of the mothers we meet here tell us they lost sons to jihady ideology. even missing, jailed, or dead. a son prayed in the same neighbor mosque. one day last year, he disappeared. >> after ten month is we were watching the news and we heard them say they had been fighting in the mountains. as we sat there, we heard them announcing his name. and the group with him was killed in the mountains. i heard the interior minister announce it. in spite of the influence of foreign fighters the tunisia battle ground are increasingly here at home. where attacks on soft western targets grab headlines around the world. recruitment, we're told is in the mosques.