G20 Major Economies

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President Obama meets with German Chancellor Angela Merkel on the sidelines of the G-20 summit Thursday in Seoul. She rejected a U.S. proposal to try to cap global trade imbalances. "To set political limits on trade surpluses and deficits is neither economically justified nor politically appropriate," she told the G-20 business summit. (Associated Press)

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A woman polishes a chrome globe at the entrance to the venue of the upcoming G-20 summit on Tuesday in Seoul. The U.S. already is signaling that it may tone down its demands for action by China, Germany and other countries with chronic surpluses. (Associated Press)

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South Korean police officers jump into the Han river while patrolling for possible terrorist activity before next week's G-20 meeting in Seoul. (Associated Press)

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** FILE ** Treasury Secretary Timothy F. Geithner listens to questions at a press conference during a meeting of the G-20 finance ministers and central bank governors in Gyeongju, South Korea, on Saturday, Oct. 23, 2010. (AP Photo/Ahn Young-joon)

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Participants in a bike-block action demonstration cut Sunday through a park in Toronto during the G20 Summit. (Associated Press)

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A Royal Canadian mounted police officer stands guard as Britain's Prime Minister David Cameron, not seen, and his delegation arrives in Toronto, Canada, Thursday June 24, 2010 to attend the G8 and the G20 meetings. Cameron steps into a potential hornets' nest of trans-Atlantic conflict when he makes his global debut this week at the G-20 summit in Canada, with tensions over Afghanistan, Europe's debt crisis and the BP oil spill gaining in intensity. (AP Photo/Lefteris Pitarakis)

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President Obama walks across the tarmac with Chief of Protocol Robert William Peck, as he arrives at Pearson International Airport in Toronto, Friday, June 25, 2010, for the G-8 and G-20 summit. (AP Photo/Carolyn Kaster)

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President Obama returns a salute prior to boarding Air Force One at Andrews Air Force Base, Md., Friday, June 25, 2010, prior to traveling to Canada for the G-20 summit. (AP Photo/Charles Dharapak)

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President Obama is greeted on the tarmac by David Jacobson, the U.S. ambassador to Canada, left, Chief of Protocol Robert William Peck, second from left, and U.S. Consul General Kevin Johnson, right, as he arrives at Pearson International Airport in Toronto, Friday, June 25, 2010, for the G-8 and G-20 Summit. (AP Photo/Carolyn Kaster)

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A Royal Canadian mounted police officer stands guard as Britain's Prime Minister David Cameron, not seen, and his delegation arrives in Toronto, Canada, Thursday, June 24, 2010, to attend the G8 and the G20 meetings. (AP Photo/Lefteris Pitarakis)

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Presidential Committee for the G-20 Summit Chairman Il SaKong, left, chats with South Africa's Minister in the Presidency in charge of the National Planning Commission Trevor Manuel during an opening press conference at the G-20 Finance and Central Bank Governors Meeting in Busan, South Korea, Friday, June 4, 2010. Leaders of G-20 nations will meet in Toronto, Canada June 25-27, 2010. (AP Photo/Andy Wong)

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**FILE** In this photo from April 2, 2009, President Obama meets with India's Prime Minister Manmohan Singh at the G-20 summit at the ExCel Centre in London. (Associated Press)

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** FILE ** International Monetary Fund Managing Director Dominique Strauss-Kahn speaks during at a press conference at the end of the second day of the G-20 meeting of finance ministers and central bank governors at the World Bank headquarters in Washington on Saturday, April 24, 2010. (AP Photo/Cliff Owen)

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President Obama, followed by British Prime Minister Gordon Brown (center) and French President Nicolas Sarkozy, arrive Friday to make a statement on Iran's nuclear facility during the G-20 Summit in Pittsburgh. (Associated Press)