Sara Phillips of Manalapan, NJ., right, and Gleen LeVasseur, of Neptune, NJ., place flags at the temrorary memorial site to Flight 93 in Shanksville, Pa., at sunrise on Sunday, Sept. 11, 2005. (AP Photo/Gene J. Puskar)
Sara Phillips, from Manalapan, NJ., right, and Rob Lantos of Statton Island, NY., visit the temporary memorial to Flight 93 in Shanksville, Pa., at dawn Sunday, Sept., 11, 2005. (AP Photo/Gene J. Puskar)
Yachiyo Kuge, of Toyonaka City, Osaka, Japan, wife of Flight 93 passenger Toshiya Kuge pays a visit to the temporary memorial at the Shanksville, Pa., crash site Saturday Sept 10, 2005, the eve of the fourth anniversary of the terror attacks. (AP Photo/Gene J. Puskar)
Flight 93 Ambassador Clay Mankamyer holds up a book with the pictures of passengers and crew of United Airlines Flight 93 for a tour group at the Flight 93 Temporary Memorial just outside Shanksville, Pennsylvania September 10, 2005. Sunday marks the fourth anniversary of the September 11th attacks. REUTERS/Jason Cohn