'Point's blog about the Black Widow got me to thinking about how since our heroes don't age normally, they often outlive elements of their origins, i.e., as the USSR recedes into the past, Natasha's past as a Soviet spy will doubtless recede with it. A small adjustment perhaps, making simply a Russian spy is easy enough.
Iron Man's ties to the Vietnam War are a little trickier - of course, it ca…