This topic was inspired by August1991's comment(s) in another thread.
What about stabbings, and acid-throwing?
We have a Canadian who stabbed an American in a USA airport. Stabbings happen frequently in Europe. You won't know until you're being stabbed.
No matter how we want to show that these attacks doesn't change us - they do! It's psychological. At least August1991 is honest to say it.
Now, let me ask a controversial question: If A