At the heart of the 9-11 terrorist attacks, say some Middle East experts, were a series of "root causes." Among them, they note, were Washington's foreign policy, the Israeli-Palestinian dispute, and the growing economic, political, cultural, and military power of the United States.
Other analysts say the "root causes" of terrorism are much closer to home and have little to do with the United States. Judith Latham has more in this Dateline report.