> But you can hardly do that by accident. Exactly, and plenty of closed source router firmwares expose the same option. And radios (Japanese radios can listen

> But you can hardly do that by accident. Exactly, and plenty of closed source router firmwares expose the same option. And radios (Japanese radios can listen on German police frequencies, I think), etc. pp.; basically everything with an antenna that's sold in more than one country.