>> it's blowing offshore away from japan. this is a computer model that will model the atmosphere for the next five days. we'll let it stop, because it is still moving right now to monday. when it starts again, you'll notice that from right now, the wind will be blowing offshore. follow it around this giant low pressure center, possibly going over the alaska islands there, the aleutians, and then back into eastern russia. then again, possibly as it moves in. now that's a theoretical particle, almost like a balloon that won't go up and down. does radiation act like that? no. but that's how the wind would blow it around. a lot of the radiation just evaporates or goes away because the isotopes become nonradioactive before it hits the united states. >> and do you know how long wind conditions are going to be like