Soccer is the biggest sport world wide and its popularity continues to grow in the US. If I have to guess, I'd say cricket is the second largest worldwide. Seriously, as an American, I have to wonder why we felt the need to invent baseball. Baseball is a colossal bore compared to Cricket. Nearly every
throw turns into a run with Cricket so there is action on the field all the time - much more so than baseball. And it has something called a Googly. I've been watching for 2 years and am not even sure what a Googly is but it's a better term than anything related to baseball. Twenty20 NatWest Cricket is my favorite sport to watch.
That being said, I don't think there are many differences between most countries where vapors are concerned. ECF is a worldwide forum and while the US seems to be the majority, I don't see a lot of miscommunication between country participants. ECF is a UK run forum.
Of course you haven't seen any civilians chasing down terrorists (or even ordinary civilians)! Why? Because the vast majority of gun owners DON'T carry their guns. Their guns are locked up at home and only taken out when they go to the range or out hunting (just like in the UK). The 99.99999% (my estimate) of legal guns in the USA aren't the problem - it's the illegal guns that are a bigger problem and result in more harm. As for someone going crazy and scaring the wife and kids, I think you watch too much US TV. Does it happen? Yeah, but its a relatively rare occasion - on par with about how often you hear about someone in the UK going crazy and scaring their wife and kids with a blade or other handheld weapon (which is when the UK SWAT teams show up armed to the teeth).