The US political asymmetries include that gun advocates, peace officers, and ex-military types that probably dislike Snowden most are statistically the least li

The US political asymmetries include that gun advocates, peace officers, and ex-military types that probably dislike Snowden most are statistically the least likely Americans to commit violent crime and have not engaged in any kind of systemic political violence in the modern era. It's the left that plans and starts riots e.g. at Trump rallies as WikiLeaks has documented. Only crazies and communists and white supremacists have used assassination as a political tool in America in the modern era and that hasn't even happened in forty years. I expect Snowden would be perfectly safe under a pardon. Until then I'd advise him to avoid long sight lines; America's official enemies have a way of finding themselves exploded at a nice sterile distance.