nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqc5w7nylql0tc7dstplla2nayu85q5yqzkl5nmsrsk2y60m70mmts0usejq Define "private". If they were calling over normal telephone networks, that's only private as long as no one bothers to listen in. If they were calling over Signal, someone has bothe...