They wouldn't get much the area is pretty well devastated. They should try the north west. Legal pot and lot's of Starbucks!
Mongolian hoards usually attack from the southwest. French Canadians attack from the northeast.
They'd learn just like Native Americans did that bows and arrows are no match for guns.
Someone's head would roll in Homeland Security for not checking their baggage or asking the right questions when they landed.
Why? Is there something you aren't telling us?
buy an umbrella
I wonder if there were Zombies everywhere.
I never trusted mongolian hordes.