Anti-Vietnam war pamphlet published as pamphlet 25 by Solidarity June-July 1967, which was quite unique in the time in that it also criticised the North Vietnamese bureaucratic regime. It was later added to and superseded by the lengthier pamphlet, Vietnam: whose victory?.
Brief mention of Bob Potter's pamphlet in this review of a Chomsky book from 1970:
“Uncle Sam is wicked” (1970)