take to dismantle syria's chemical weapons stockpile? john kerry dismissed it as a joke, something you couldn't do but now they are taking it ser youszly. they believe the assad regime has one ton of weapons, sulfur, mustard and sarin. finding the chemical weapons sites and accounting for them is say challenge because the international community only knows where some are. tom foreman in washington with rick who live in syria for three years. tom, i guess, to start off to you two, how difficult is this? >> well, you know, erin, this is like a flying car. great idea but in execution it gets complicated and here is why. intelligence sources, some in congress and the white house say look, we know where it's made. we know where it's all stored, but if they really want to get at this stuff, they have to have corporation from the syrians.