Lord Alderdice, one of the key political figures who helped resolve Northern Ireland's long-standing "troubles" between its Catholic and Protestant citizens, joins Rick as a special guest to discuss the tensions facing the United States and its allies. The Belfast native provides a look at the personal reasons fueling political conflict and provoking terrorist acts and shares his approach to overcoming terrorism and designing road maps for peace. For more information on Travel with Rick Steves - including episode descriptions, program archives and related details - visit www.ricksteves.com.