WASHINGTON, DC - SEPTEMBER 24:  Pope Francis is greeted by US Secretary of State John Kerry and other members of Congress as he arrives to speak during a joint meeting of the U.S. Congress in the House Chamber of the U.S. Capitol on September 24, 2015 in Washington, DC.  Pope Francis is the first pope to address a joint meeting of Congress and will finish his tour of Washington later today before traveling to New York City.  (Photo by Win McNamee/Getty Images)