Blood, Sweat & Tears was bigger than I've remembered (what the hell happened to them?)

What the Hell Happened to Blood, Sweat & Tears?

From the YouTube page:

A political thriller about the first American rock band to perform behind the Iron Curtain, whose members find themselves in the crosshairs between the Right and the Left of a polarized America with severe career repercussions.

I was certainly aware of Blood, Sweat & Tears back in the 1960s and 70s. After all, I played in a band that played a number of BS&T tunes. But I don’t remember them as being THAT big, perhaps because, as the Wikipedia entry notes, “by the mid-1970s the group’s popularity began a decline.” And if I was aware of their State Department-sponsored tour of Eastern Europe in 1970, which is the focus of this fascinating documentary, I’ve forgotten or repressed it.