Not all radicals suffer from mental illness. Branding all that don't share your view as terrorists is self defeating. Some people believe in their cause, and in the middle-east they are probably right. Most countries including the USA were born out of a war of independence. Stop the injustices in the middle-east and western interference and there is a better chance for peace .At the present time fighting wars seems to be good for jobs and profits. You can't have it both ways.