>> right, exactly. however as you know this is no ordinary 747. i mean, when people think of air force one they think of president obama landing in a town waving to the crowd. but really, the mission of this plane is the 9/11 scenario. it has to have electronic counter-measures on board for surviveability. it basically has to be a flying white house, mobile command and control center. so you have electronic counter measures such as jamming devices, you have flares that can throw off enemy missiles, and a huge amount of communication. the president needs to be able to talk to the nuclear forces whenever he needs to. so if you're in a scenario where you need to be up in the air indefinitely potentially what you really need is something that can survive, has aerial refuelling, it has a lot of fuel capacity. something that you can stay up in the air indefinitely.