That airports are more secure is not hard to believe, as they're not actually in cities so criminals would have to plan ahead and travel there to start whatever

That airports are more secure is not hard to believe, as they're not actually in cities so criminals would have to plan ahead and travel there to start whatever undefined criminal activity we're talking about. I doubt it's the security theater that does it, as they are just for getting onto planes (I haven't seen security people outside of that security area). It's not like I've never seen a homeless person in a city center (which includes train stations, though usually they're not inside) but I'm not sure that crime rates are actually that high. With cameras all over the place, it sounds like it would be a hard place to operate at more than a handful of times until they know what you look like, but IANAC.