I never worry about these things. I've flown with some of the worst airlines in Africa, Russia, Asia and South America and take my chances! When people have said, don't walk alone in that place, I've walked alone and got drunk with the locals (well ok, I did end up robbed in the Congo, and walked back in my boxer shorts...), and accept the risks that life throws at you.
If you really spend your life worrying about these things, you'll miss out on the great opportunities.
If the government had it's way, people would be turned into a nation scared to walk out of their door, and scared of terrorism at every corner, or being hit by a car, plane or space ship!
