To answer the spirit of the question: as an American, you could freely subscribe to Soviet newspapers, printed in the USSR, which the US Post Office would deliv

To answer the spirit of the question: as an American, you could freely subscribe to Soviet newspapers, printed in the USSR, which the US Post Office would deliver right to your doorstep (via international mail). That has been the case since 1965, when the Supreme Court settled the question in Lamont v. Postmaster General. https://en.wikipedia.org/wiki/Lamont_v._Postmaster_General https://en.wikipedia.org/wiki/Lamont_v._Postmaster_General