Forces close enough to to launch a rescue operation. the attack killed the u.s. ambassador there chris stevens plus the state department official sean smith and two form are navy seals tyrone woods and gene doherty. jen griffin is at the pentagon. do we know why this is happening now? >> for one the war is winding down in afghanistan. marines have been asked to fight in desert wars during the past 12 years. now they are getting back to doing what they did in the past. special operations teams composed of 14 marines would now be placed on navy ships. this will position the marines to serve as c...