U.S. Sends 50 Marines to Haiti The United States sends 50 Marines to Haiti's capital to safeguard the U.S. embassy and staff as rebels threaten to move on the city. The nation's second-largest city, Cap-Haitien, fell to the opposition over the weekend. Supporters of President Jean-Bertrand Aristide have erected barricades on key streets in Port-au-Prince. Hear NPR's Melissa Block and NPR's Martin Kaste.