When I heard about the Boston Marathon bombing, my first thought after it was determined not to be a natural gas explosion, was that it was home-grown right-wing terrorists. Local Patriot's Day, Income Tax day, etc. To me, it fits.
Other people have their prejudices too. One of the first reactions I heard was "Burn all the mosques! It's Obama's fault!"
I'm ashamed to have to call those assholes Americans.
Who do you think is closer?