I don't care if I would fit into the bracket for being a terrorist. If it was people like me, I would understand why it would be me getting randomly searched. As long as safety is paramount then fine, if people who looked like me where suspected of being illegal then so be it, search.
After all, if you have nothing to hide then why care if your being searched? You would have nothing to worry about...
EDIT: They actually do this in London, they check if anyone is acting "suspeciously" and question them and ask for identity.









