It's a matter of scale. How many experience covert ops / TAO teams do you think the FBI has? Are they going to do a covert entry to your basement, deploy a cust

It's a matter of scale. How many experience covert ops / TAO teams do you think the FBI has? Are they going to do a covert entry to your basement, deploy a custom software or hardware implant, watch you, retrieve their implant, etc? They would have to have probably cause, and in any case they don't have the budget or people to do many. And you can actually make it incredibly hard quite easily -- do everything on an ipad with a strong passphrase and no network connection (except occasionally to get software updates from Apple), keep it in a decent tamper evident safe (not a money safe), a painfully loud alarm with PIRs, in a location where people are around. Contrast that with surveillance via grep.