The current pre-clearance rules for Canadians being processed through US immigration at Canadian airports limit the powers of US immigration officials, preventing them from strip-searching Canadians (they can ask Canadian border guards to do it, but if the Canadian guards refuse, they're out of luck) and giving Canadians the ability to turn around and leave the immigration area, returning to Canada, if they don't like the way they're being treated by the US guards. (more…)