Clinton shakes hands with Espinosa as Salazar, Calderon and Herrera watch after they signed the United States-Mexico Agreement Concerning Transboundary Hydrocarbon Reservoirs in the Gulf of Mexcio in

 
Clinton shakes hands with Espinosa as Salazar, Calderon and Herrera watch after they signed the United States-Mexico Agreement Concerning Transboundary Hydrocarbon Reservoirs in the Gulf of Mexcio in
U.S. Secretary of State Hillary Clinton (L) shakes hands with Mexico's Foreign Minister Patricia Espinosa (2nd R) as U.S. Interior Secretary Ken Salazar (2nd L), Mexico's President Felipe Calderon (C) and Mexico's Secretary of Energy Jordy Herrera (R) watch after they signed the United States-Mexico Agreement Concerning Transboundary Hydrocarbon Reservoirs in the Gulf of Mexcio on the sidelines of the G20 foreign ministers summit in Los Cabos, February 20, 2012. REUTERS/Charles Dharapak/Pool (MEXICO - Tags: POLITICS ENVIRONMENT)