I yield to nobody in my dislike of the USA's apparent belief that they are entitled to be the world's policeman, but the people who died in the Twin Towers were not politicians, just ordinary workers, many of them muslims. I have expressed my feeling about mindless hatred of a whole nation on another thread. Hate the people who make the decisions, on the basis that they are stupid, corrupt, or both, but not just because they are of a certain nationality. We see where that leads.
Feeling sympathetic towards the people affected by one atrocity does not mean I don't feel equally sympathetic towards those involved in others.
I was talking on a personal level about the courage of those who knew they were going to die and still spoke calmly to their families on the phone - it changed my view of Americans.