ummm, so this might actually become a serious threat for the ability to secure bitcoin against well-resourced adversaries if you have a large stack. I have previously mentioned how I think most people are not secure against extensive surveillance in conjunction with enhanced interrogation.

My only idea for defending against this sort of thing is reducing the *legibility* of the locations of different keys even to yourself by encoding the information in a visually generic way i.e. going out into the wilderness and burying keys somewhere on a remote mountain, but navigating very carefully such that you can get to the same spot from a known starting point, but are unable to accurately describe how to get there even if you tried. Of course, this bears its own risks so I DO NOT advise anyone to do this since it also seems pretty likely you lose the keys.

This also highlights the ever present need to maintain good opsec, physical security, and to avoid KYC.