I recommend Malcolm Muggeridge's autobiography for a compelling look at the circle of Western journalists in Moscow in the '20s and '30s, of which Muggeridge was a part. Scott Alexander has a good review:

http://slatestarcodex.com/2015/08/11/book-review-chronicles-...

You either stayed in that circle or dropped out; there was no in-between. Of the reporters listed in the link, W.H. Chamberlin is the only other one who defected. Duranty (whose Pulitzer the NYT still refuses to return) was the norm, not the exception.

Also note that Thompson was part of the most bloodthirsty wing of New Dealists (eg, Rex Stout, also seen in the link) who supported prewar and postwar anti-German atrocities. It was certainly Nazi policy from 1941-45 to kill as many Jews as physically possible, but it was also Allied policy from 1941-45 to kill as many Germans as physically possible -- and that policy by no means stopped on a dime in May 1945:

https://en.wikipedia.org/wiki/Food_in_occupied_Germany

A real and complete moral reckoning for the period has yet to come, and will be more interested in our crimes than those of our defeated enemies.