Back when the IRA was detonating bombs with regularity, one completely harmless redhead I know was detained and questioned for hours nearly every time she trave

Back when the IRA was detonating bombs with regularity, one completely harmless redhead I know was detained and questioned for hours nearly every time she traveled from the US to London (which was often). On the one hand, it's definitely a serious problem that needs solving, on the other hand it's neither completely irrational, nor a new problem.