in 2011 osama bin laden was killed by navy seals, followed later by anwar al-alwaqi, taken out in a c.i.a. drone trike. as far back as 2006 when the u.s. was in iraq, an air strike killed the leader of al qaeda in iraq. in every case the us touted the deaths were touted as a history. new york times foreign correspondent who covered many of these groups in africa, says the targeted killings could have unintended consequences, especially with al qaeda in decline and i.s.i.l. ror on the rise. >> al qaeda is being hollowed out from within. i've spoken to a number who have now essentially gone to i.s.i.l. losing someone like nasir al-wuhayshi, with personal charisma and hold over the group could, in fact, accelerate the process. it could make i.s.i.s. more powerful than it is today. >> reporter: with success in iraq, and slick propaganda, i.s.i.l. is seen as the winning team. >>> russia is beefing up nuclear weapons arsenal. vladimir putin says he ordered 40 new intercontinental missiles amid tensions with the u.s. and n.a.t.o. allies over the adelaide role in ukraine. earlier this week it was