BRISBANE, AUSTRALIA - NOVEMBER 15: President of China Xi Jinping, Prime Minister of Canada Stephen Harper, U.S. President Barack Obama and Prime Minister of Australia Tony Abbott watch the Welcome to Country ceremony by Aboriginal and Torres Strait Island people at the G-20 summit on November 15, 2014 in Brisbane, Australia. World leaders have gathered in Brisbane for the annual G20 Summit and are expected to discuss economic growth, free trade and climate change as well as pressing issues including the situation in Ukraine and the Ebola crisis. (Photo by Mark Baker - Pool/Getty Images)
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