plusus a looook at the navy's top warship perhaps. the deadliest terrorist attack, two brothers affiliated with al qaeda are secretaried of killing 12 and seriously injuring a dozen others.s. armed with assault rifleles and clad in body ohey badgered into theeekly charlie hebdo, killing several. they wanted t to push the publication for its aracterizatition of the prophet mo hold. one them was jailed in 2005 after trying too to iraq to fight agagainst american troops. the other went to yemen in 2011 and trained by al qaeda. to discuss the implications are rrie of f the council, andd stephanie, who heads the homeland securit and counterterrorism program at the center foror strategic and international studies. thanks foroining us. this was a stunning attack. ere is a radicalizatation element europe has beenn dealing wiwith. several hundred if not several thousands of europeans have gone to fight in iraq, afghanist, syria, yemen and you name it. the questionon now is how lely is an attack like is too happen in the united stat? >> i think