sygone or afghanistan. >> what is the troops mission? is it just to get the safe return of everybody they can get on an airport? >> yeah, the first elements are going in right now. all 3,000 there by the end of the weekend, and it is important to point out the pentagon is very, very quick to say that this is a specific tailored and temporary mission. they want to make it clear that these 3,000 marines and soldiers are specifically there to secure the airport and to help with the evacuation of the americans assigned to the embassy and to aide the special immigrant visa candidates that may need to leave the country. the reason that this is all accelerated so much in the last 48 to 72 hours is that the taliban have militarily behaved pretty masterfully here.