Actually he doesn't have anti-US attitudes and his foreign policy is a complete 180 from leftist. Paul believes that our government should stick with the US only and not be a world police. He never said the US was responsible for the attacks just that our policy of intervening with others just exacerbates these people who are likely to commit these sort of crimes. AS for the 'US caused millions of deaths in Iraq', care to provide a quote with that?
Do you doubt it?