From The Atlantic:
"At the beginning of the revolution, not only the Islamists but also the radical left were all very set in what they wanted and the way they saw the world. As the revolution progressed, two things happened to the young Islamists. One was that the Islamic Republic failed to live up to any of its claims�apart from oppressing people and changing the laws, lowering the age of marriage from eighteen to nine, it did not accomplish anything economically, socially, politically, or in terms of security. So there was this failure on the one hand. And on the other hand, people like Mr. Forsati, people who were leaders of the Muslim Students' Association, had much more access to Western products than my secular students did. And by and by, they became familiar with the Western world, and they found that this world was much more attractive and had much more to offer than the closed world that their leaders were promising them. They felt betrayed. "