Slate is asserting that the pilot's political leanings are being sensationalized.
http://www.slate.com/articles/news_a...terrorist.html
He seems like a dedicated pilot, family and community ties (suggestions that he had recently separated from his wife but also denials of same), with three daughters and what appears to be an enviable lifestyle - I don't know anything about psychological profiles in cases like this but by all accounts he is/was dedicated to his career. Does that seem like someone who would risk the lives of the souls entrusted to him after a decades-long career?