What is and isn't fair game on the wireless spectrum? I would have naively assumed that it was always fair game to demodulate and record a wireless signal, but not to break the encryption if it existed, but this article suggests that isn't the case. Presumably listening in on a conversation on the ham radio bands isn't wiretapping (although perhaps rude, I don't know the conventions). Clearly anything where you're breaking encryption is a no-no. But there's plenty of ground in between where it's not immediately obvious what is and isn't allowed. Does it just depend on whether there is an expectation of privacy? Are rules different for different frequency bands? Are the rules different for listening vs recording?