I read something recently --- can't remember what --- that suggested that the expensive ceremony around obtaining phone wiretaps at the state level were in part motivated by the concern that wiretaps came close to reading the thoughts of the accused.
I imagine this is more along the lines of 4th amendment or thoughtcrime.
I actually believe we are likely to need another amendment to protect us in the future, because I don't think the fifth does or would do a good job of this.
