Brian Knowlton writes in the The International Herald Tribune about the success of exchange programs. Some prejudices are overcome, while others remain instead of being questioned as well:
Bush administration efforts to improve attitudes toward the United States among Muslims around the world have met with sharp, bipartisan criticism here as inadequate, even naïve. But student-exchange programs have provided a notable exception. The State Department-sponsored Youth Exchange and Study Program, started in response to the terror attacks of Sept. 11, 2001, appears to have had positive results.
(...) "Before, I thought the Americans were like the Europeans - no religion, no moral values, taking drugs, having sex, drinking all the time," said Sirine, an earnest 17-year-old Tunisian who stayed with an Atlanta-area family. "But my opinion changed. I found people going to church a lot, and some are really conservative."