year s terror plot. a series of raids that started sunday in brussels turned up isis propaganda material but no weaponry according to officials. the investigation is not tied to the terror attacks in paris. nbc s cortney cuby is at the pentagon and chapman bell is in london to break all of this down. cortney, you were in the briefing. bring us up to speed. you listened to the briefing, i should say, on what the very latest is. reporter: well, there was the individual who was killed that you played the tape of colonel steve warren announcing. there was actually another individual who was killed. there were ten during the month of december that colonel warren mentioned. but one of them was another one that had ties to the paris attack network. he was just killed last weekend. he was another the u.s. military calls them external operations planner, so basically what that means is they are people who are working on planning attacks outside of that area, usually in the west, in europe,