Most if not all of those charts that are being shown are estimates, when the radiation monitors here in Alaska go up i will get worried, until then no...most of the heavy metals dissipate before they even get close to the U.S., that's why they call them "heavy"..they fall faster because they are heavier.
Everyone here survived Chernobyl, all the above ground nuke testing all over the world, its no different, unless our monitors start registering differently we should be fine.
The federal government wouldn't let everybody die, they wouldn't have anyone to support them or work for em anymore..lol