Are you speaking practically or legally? Practically: yeah sure no problem. Governments already collaborate on stuff like missing people and/or terrorist track

Are you speaking practically or legally? Practically: yeah sure no problem. Governments already collaborate on stuff like missing people and/or terrorist tracking and civilian espionage. On a legal basis though... where's the law that prevents me from doing the kind of math to run a bitcoin node? And even if there was such a law, it might be unconstitutional and thus not enforceable (at least in the long run).