I've met a lot of R/Os throughout the 1960s and 1970s, and sometimes they would tell me about the restrictions placed on them in various ports. In the US, they told not to operate the transmitter except if they had to run a test, but it seems that was all that was said about it. In some countries, like Taiwan, some kind of bracket would be affixed over the board. Then there was the tale of a visit to Romania, where a guard was posted at the radio room (this was on an Indian ship). Any tales?