For once, I'm with I like to bike on this. Unless you're just hitting back at the easy targets, getting aggressive is just going to end badly. Fortunately, I got very little hassle here in the UK, but if I did, I'd be trying to restrain my desire to hit back, because whilst I'm a big guy and I can take care of myself, 3 Chavs in a souped up Saxo, quite possibly carrying knives, and definitely armed with a 3/4 ton killing machine are likely to be too much of a match for me.

I also can't see how that type of reaction is going to help overall - the USA has a cutural problem with aggression and selfcentredness, and if you respond in kind, all you do is show that you are equally a product of the culture. You can only hope to affect that culture AT ALL by finding a better way. Going the same way just ensures that eventually, the person with the biggest weapon wins, and unless you're going to start carrying a gun, it's always going to be the guy with the car, right?