I also thought about this, since as far as I know, any complications with the equipment will affect the staking (including temporary shutdown). Correct me if I'm wrong, but before starting work, bitcoin miners must also agree that their coins can be confiscated for a number of reasons (I do not remember what the fund of confiscated coins is called). As for the alleged FBI visits, I doubt that they will be interested in someone else's encrypted information posted at your home, (considering that they can send a request to the NSA and get any data).