taliban leaders, do we know generally who is being targeted here, yogi? brennan didn't want to go into detail, but what do we know about those kill lists? >> it's a good question. to go back briefly to bob's point, it's not that the number of drone strikes have decreased but the rules about them havelessened and loosened considerably. you had john brenan yesterday talk about one of the more controversial aspects of this, which is the president's decision to order the deaths of american citizens abroad. there was an al qaeda propagandist who was killed in a drone strike. >> and his son, as well. >> exactly, and his son as well. and neither soft those were discussed in any way. there was no allusion to killing u.s. citizens but there was no discussion about killing a propagandist and his son who was in control of these types of terror attacks. >> u.s. officials have said they're very careful.