The negotiations between the U.S. and Russia about prisoner swaps and any potential talks over Moscow’s full-scale war against Ukraine are not related, U.S. National Security Advisor Jake Sullivan said at a briefing on Aug. 1. Sullivan’s statement came after amajor prisoner exchange that involved 26 people from seven countries — the U.S., Germany, Poland, Slovenia, Norway, Russia, and Belarus. Eight of them, including convicted Russian hitman Vadim Krasikov, were returned to Russia in exchange for the release of 16 people who were held in Russian detention, including Wall Street Journal report…