I don't think you understand the legal justification behind the 5th amendment. It has nothing to do with the contents of your mind being private. It is a protec

I don't think you understand the legal justification behind the 5th amendment. It has nothing to do with the contents of your mind being private. It is a protection against forced confessions via torture. A long time ago it used to be common to torture people until the admitted to committing a crime that they did not commit just to stop getting tortured. By making this sort of testimony inadmissible it removes the incentive to torture. The various restrictions against law enforcement whether it be the 5th amendment or anything else all exist for specific reasons. They aren't just there to make law enforcement's job harder and as a general privacy protections. Extending these rules beyond the justification for their existence (as you attempt to do in your comment) isn't supported by legal precedent.