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Political scientist Dominic Tierney on why the U.S. gets trapped in conflicts like Iran

NPR's Scott Simon speaks with Swarthmore College political science professor Dominic Tierney about the U.S.-Iran war and other conflicts that have left the U.S. in drawn-out entanglements.

Copyright 2026 NPR

Scott Simon is one of America's most admired writers and broadcasters. He is the host of Weekend Edition Saturday and is one of the hosts of NPR's morning news podcast Up First. He has reported from all fifty states, five continents, and ten wars, from El Salvador to Sarajevo to Afghanistan and Iraq. His books have chronicled character and characters, in war and peace, sports and art, tragedy and comedy.