Pentagon Dispatching 100 News Today

Escalating showdown. nbcs hans nichols has the latest for us tonight. >> reporter: it was a sudden and brazen attack thousands of iranian-backed demonstrators chanting "death to america" as they stormed the u.s. embassy in iraq, here using a battering ram to try to pierce the armored entrance lobbing smoke bombs on to embassy grounds met with tear gas and stun grenades embassy guards watching from the roof protesters lighting fires, though they never got inside the walls of the massive embassy c...