Mexico's President Felipe Calderon (front, 2nd R) gestures as India's Prime Manmohan Singh (C) arrives late for a group photo of G20 leaders at the G20 Summit in Los Cabos, Mexico, June 18, 2012. REUTERS/Jason Reed (MEXICO - Tags: POLITICS) 

Leaders of the G20 pose for the family picture in Los Cabos June 18, 2012. G20 leaders will kick off two days of meetings in the Pacific resort of Los Cabos on Monday REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS) 

Leaders of the G20 pose for a group photograph at the G20 Summit in Los Cabos June 18, 2012. G20 leaders will kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS) 

Leaders of the G20 nations gather for a group photo at the G20 Summit in Los Cabos, Mexico, June 18, 2012. Pictured are (front row, L-R) South Africa's President Jacob Zuma, Brazil's President Dilma Rousseff, Russia's President Vladimir Putin (second row, L-R) Canada's Prime Minister Stephen Harper, Japan's Prime Minister Yoshihiko Noda, European Council President Herman Van Rompuy and Saudi Arabia's Minister of Finance Ibrahim bin Abdulaziz Al-Assaf. REUTERS/Jason Reed (MEXICO - Tags: POLITICS) 

Leaders of the G20 nations gather for a group photo at the G20 Summit in Los Cabos, Mexico, June 18, 2012. Pictured are (front row, L-R) China's President Hu Jintao, Mexico's President Felipe Calderon, South Korea's President Lee Myung-bak, (second row, L-R) India's Prime Minister Manmohan Singh and British Prime Minister David Cameron. REUTERS/Jason Reed (MEXICO - Tags: POLITICS) 

Mexico's President Felipe Calderon (C) gestures for South Korean President Lee Myung-bak (front L) to take his place as leaders of the G20 nations gather for a group photo at the G20 Summit in Los Cabos, Mexico, June 18, 2012. REUTERS/Jason Reed (MEXICO - Tags: POLITICS) 

France's President Francois Hollande (L) speaks with Argentina's President Cristina Fernandez as leaders of the G20 nations gather for a family photo at the G20 Summit in Los Cabos June 18, 2012. REUTERS/Jason Reed (MEXICO - Tags: POLITICS) 

India's Prime Minister Manmohan Singh (L) arrives late as leaders of the G20 nations gather for a family photo at the G20 Summit in Los Cabos June 18, 2012. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS TPX IMAGES OF THE DAY) 

Leaders of the G20 nations gather for a group photo at the G20 Summit in Los Cabos, Mexico, June 18, 2012. Pictured are (front row, L-R) U.S. President Barack Obama, China's President Hu Jintao, Mexico's President Felipe Calderon, (second row, L-R) Australian Prime Minister Julia Gillard, German Chancellor Angela Merkel and Colombian President Juan Manuel Santos. REUTERS/Jason Reed (MEXICO - Tags: POLITICS) 

U.S. President Barack Obama talks with Indonesia's President Susilo Bambang Yudhoyono (front L) as Turkey's Prime Minister Tayyip Erdogan (3rd L) and Australian Prime Minister Julia Gillard (R) look on during the group photo session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders will kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS BUSINESS) 

Leaders of the G20 nations (L-R) Australian Prime Minister Julia Gillard, U.S. President Barack Obama, Spain's Prime Minister Mariano Rajoy and German Chancellor Angela Merkel gather for a group photo at the G20 Summit in Los Cabos, Mexico, June 18, 2012. REUTERS/Jason Reed (MEXICO - Tags: POLITICS) 

Leaders of the G20 nations gather for a group photo at the G20 summit in Los Cabos June 18, 2012. Pictured are (front row L-R): U.S. President Barack Obama, Chinese President Hu Jintao, Mexican President Felipe Calderon, (second row L-R): Australian Prime Minister Julia Gillard, German Chancellor Angela Merkel, (third row L-R): Spanish Prime Minister Mariano Rajoy, Cambodian Prime Minister Hun Sen and Colombian President Juan Manuel Santos. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

Leaders of the G20 nations gather for a group photo at the G20 summit in Los Cabos June 18, 2012. Pictured are (front row, L-R): China's President Hu Jintao, Mexico's President Felipe Calderon, South Korea's President Lee Myung-bak, (second row, L-R): German Chancellor Angela Merkel, India's Prime Minister Manmohan Singh, British Prime Minister David Cameron, (3rd row): Spain's Prime Minister Mariano Rajoy (L) and Colombia's President Juan Manuel Santos (R). REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

U.S. President Barack Obama (3rd L) waits alongside Australian Prime Minister Julia Gillard (2nd L), German Chancellor Angela Merkel and China's President Hu Jintao as leaders of the G20 nations gather for a group photo at the G20 Summit in Los Cabos, Mexico, June 18, 2012. REUTERS/Jason Reed (MEXICO - Tags: POLITICS) 

U.S. President Barack Obama (L) and German Chancellor Angela Merkel (C) talk as China's President Hu Jintao (R) looks on during the group photo session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders will kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

Brazil's President Dilma Rousseff (front L) and Russia's President Vladimir Putin (front R) wave near Japanese Prime Minister Yoshihiko Noda (L second row ) and European Council President Herman Van Rompuy (2nd row R) during the family picture of the G20 Summit in Los Cabos June 18, 2012. G20 leaders will kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

Brazil's President Dilma Rousseff (C) talks to Russia's President Vladimir Putin (R) as South African President Jacob Zuma (L) Japanese Prime Minister Yoshihiko Noda (3rd L) and European Council President Herman Van Rompuy (2nd R) stand by during the family picture of the G20 Summit in Los Cabos June 18, 2012. G20 leaders will kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

Canadian Prime Minister Stephen Harper speaks with Japan's Prime Minister Yoshihiko Noda as the leaders of the G20 nations gather for a group photo at the G20 Summit in Los Cabos, Mexico, June 18, 2012. REUTERS/Jason Reed (MEXICO - Tags: POLITICS) 

U.S. President Barack Obama shakes hands with Canadian Prime Minister Stephen Harper before a group photo of G20 leaders at the G20 Summit in Los Cabos, Mexico, June 18, 2012. REUTERS/Jason Reed (MEXICO - Tags: POLITICS) 

French President Francois Hollande (L) and WTO Director General Pascal Lamy walk on stage as leaders of the G20 nations gather for a group photo at the G20 Summit in Los Cabos, Mexico, June 18, 2012. REUTERS/Jason Reed (MEXICO - Tags: POLITICS) 

France's President Francois Hollande, (first row L-R) Argentina's President Cristina Fernandez de Kirchner, Indonesia's President Susilo Bambang Yudhoyono, U.S. President Barack Obama, European Commission President Jose Manuel Barroso (2nd row L-R), Italian Prime Minister Mario Monti, Turkish Prime Minister Tayyip Erdogan and World Bank President Robert Zoellick (3rd row R) pose for a family photo at the G20 Summit in Los Cabos June 18, 2012. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS BUSINESS) 

France's President Francois Hollande, (first row L-R) Argentina's President Cristina Fernandez de Kirchner, European Commission President Jose Manuel Barroso (2nd row L-R) and Italian Prime Minister Mario Monti pose for a family photo at the G20 Summit in Los Cabos June 18, 2012. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS BUSINESS) 

U.S. President Barack Obama is pictured alongside China's President Hu Jintao as leaders of the G20 nations gather for a group photo at the G20 Summit in Los Cabos, Mexico, June 18, 2012. REUTERS/Jason Reed (MEXICO - Tags: POLITICS) 

U.S. President Barack Obama waits during the group photo session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders will kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

Russia's President Vladimir Putin (front) poses for a group photo with International Monetary Fund (IMF) Managing Director Christine Lagarde (L, rear), World Trade Organization (WTO) Director-General Pascal Lamy (R, rear) and Finance Minister of Saudi Arabia Ibrahim Abdulaziz Al-Assaf (C) at the G20 Summit in Los Cabos, June 18, 2012. REUTERS/Henry Romero (MEXICO - Tags: POLITICS BUSINESS) 

Brazil's President Dilma Rousseff (L) and her Russian counterpart Vladimir Putin shake hands during a bilateral meeting in Los Cabos June 18, 2012. G20 leaders are kicking off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

U.S. President Barack Obama waits for the start of the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

Russia's President Vladimir Putin waits for the beginning of the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS) 

Russia's President Vladimir Putin waits for the beginning of the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS) 

U.S. President Barack Obama (R) and an unidentified person gesture before the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

U.S. President Barack Obama (R) laughs while talking with Russian counterpart Vladimir Putin before the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS BUSINESS) 

U.S. President Barack Obama (R) and his Russian counterpart Vladimir Putin talk before the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders are kicking off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

U.S. President Barack Obama (R) talks with Australian Prime Minister Julia Gillard (C) and Indonesia's President Susilo Bambang Yudhoyono before the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS) 

Canada's Prime Minister Stephen Harper waits for the beginning of the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS) 

Canada's Prime Minister Stephen Harper (L) and U.S. President Barack Obama talk before a group photo session of G20 leaders at the G20 Summit in Los Cabos June 18, 2012. REUTERS/Henry Romero (MEXICO - Tags: POLITICS) 

Brazil's President Dilma Rousseff (L) and her Russian counterpart Vladimir Putin talk during a bilateral meeting in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

South Korea's President Lee Myung-bak (L) arrives late as the leaders of the G20 nations gather for a family photo at the G20 Summit in Los Cabos June 18, 2012. REUTERS/Jason Reed (MEXICO - Tags: POLITICS) 

India's Prime Minister Manmohan Singh waits for the beginning of the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders are kicking off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS) 

South Korea's President Lee Myung-bak (R) waits for the beginning of the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS) 

Russia's President Vladimir Putin (L) talks with United Nations Secretary General Ban Ki-Moon before the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

China's President Hu Jintao (R) talks to an unidentified person before the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS) 

Argentina's President Cristina Fernandez de Kirchner touches her hair before the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders are kicking off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS) 

French President Francois Hollande (L) listens to an unidentified person before the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS) 

China's President Hu Jintao (R) waits for the start of the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS) 

Australian Prime Minister Julia Gillard (R) talks with China's President Hu Jintao before the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

U.S. President Barack Obama laughs while adjusting his ear piece before the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS) 

U.S. President Barack Obama (L) greets his Argentine counterpart Cristina Fernandez de Kirchner before the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

Russia's President Vladimir Putin (L) greets South Korea's President Lee Myung-bak (R) before the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Andres Stapff (MEXICO - Tags: POLITICS) 

Leaders sit at a round table at the beginning of the first session of the G20 Summit in Los Cabos June 18, 2012. G20 leaders kicked off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS) 

Argentina's President Cristina Fernandez (L) is welcomed by Mexican President Felipe Calderon to the G20 Summit in Los Cabos June 18, 2012. G20 leaders will kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Henry Romero (MEXICO - Tags: POLITICS) 

French President Francois Hollande arrives at the G20 Summit in Los Cabos June 18, 2012. G20 leaders will kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Henry Romero (MEXICO - Tags: POLITICS) 

Japanese Prime Minister Yoshihiko Noda (L) is welcomed by Mexican President Felipe Calderon to the G20 Summit in Los Cabos June 18, 2012. G20 leaders will kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Henry Romero (MEXICO - Tags: POLITICS) 

China's President Hu Jintao (L) is welcomed by Mexican President Felipe Calderon to the G20 Summit in Los Cabos June 18, 2012. G20 leaders kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Henry Romero (MEXICO - Tags: POLITICS) 

U.S. President Barack Obama (L) is welcomed by Mexican President Felipe Calderon to the G20 Summit in Los Cabos June 18, 2012. G20 leaders kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Henry Romero (MEXICO - Tags: POLITICS) 

U.S. President Barack Obama (L) is welcomed by Mexican President Felipe Calderon to the G20 Summit in Los Cabos June 18, 2012. G20 leaders kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Henry Romero (MEXICO - Tags: POLITICS) 

Chile's President Sebastian Pinera (L) is welcomed by Mexican President Felipe Calderon to the G20 Summit in Los Cabos June 18, 2012. G20 leaders kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Henry Romero (MEXICO - Tags: POLITICS) 

U.S. President Barack Obama arrives to the G20 Summit in Los Cabos June 18, 2012. G20 leaders will kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Henry Romero (MEXICO - Tags: POLITICS) 

India's Prime Minister Manmohan Singh (L) is welcomed by Mexican President Felipe Calderon to the G20 Summit in Los Cabos June 18, 2012. G20 leaders kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Henry Romero (MEXICO - Tags: POLITICS) 

Italian Prime Minister Mario Monti (L) is welcomed by Mexican President Felipe Calderon to the G20 Summit in Los Cabos June 18, 2012. G20 leaders kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Henry Romero (MEXICO - Tags: POLITICS) 

French President Francois Hollande (L) is welcomed by Mexican President Felipe Calderon to the G20 Summit in Los Cabos June 18, 2012. G20 leaders kick off two days of meetings in the Pacific resort of Los Cabos on Monday. REUTERS/Henry Romero (MEXICO - Tags: POLITICS)