In the US at least, I think 4th amendment protections obviously apply (though with this bench, don't count your precedents before they hatch). Elsewhere in the world, even fairly liberal freedom loving jurisdictions, the question is still up in the air imo. That should give everyone pause.
The information age began with a single question the answer to which is still unfolding: .-- .... .- - / .... .- ... / --. --- -.. / .-- .-. --- ..- --. .... - ..--..