So he returns home to a hero's welcome and a year later he's been...
involved in a fatal car wreck, or airplane crash, or, as a cover story
when he's found dead in a ditch on a back road in Florida, tortured and
beaten to an unrecognizable pulp, "the Russians did it".
I think there's a serious underestimation here of just how murderous the
US government is if someone betrays them... Hell! You don't even have to
betray them. Just annoy the wrong people.
Sorry Edward Snowden is in Exile for life whether he likes it or not, if
he wants to stay alive.