Soing Us News Today

Herbert and soing us from boston, nbc national investigative correspondent, michael isikoff. we just read a litany of statistics regarding how gigantic and perhaps unwieldy the u.s. intelligence network is. we have no doubt ramped up our counterterrorism activities after boston. is there a flaw in the system, namely, is it just too big to catch people like tamerlan tsarnaev and dzhokhar tsarnaev? >> excellent question, alex. while were learning more and more each day about the tsarnaev brothers ...