WASHINGTON - JUNE 15:  U.S. Homeland Security Secretary Janet Napolitano (R) and Mexican Finance Minister Agustin Carstens hold a news conference June 15, 2009 in Washington, DC. During the news conference, Napolitano and Carstens announced new areas of security cooperation bwtween Mexico and the Unites States. Getty Images logo Getty Images 4 months ago

WASHINGTON - JUNE 15: U.S. Homeland Security Secretary Janet Napolitano (R) and Mexican Finance Minister Agustin Carstens hold a news conference June 15, 2009 in Washington, DC. During the news conference, Napolitano and Carstens announced new areas of security cooperation bwtween Mexico and the Unites States.