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Obama's overtures were reciprocated, to some degree, by new Cuban leader Raúl Castro. On 27 July 2012, Raúl Castro said that the Government of Cuba is willing to hold talks with the United States government to "discuss anything". On 10 December 2013, at a state memorial service for Nelson Mandela, Barack Obama and Raúl Castro shook hands, with Castro saying in English: "Mr. President, I am Castro." Though both sides played down the handshake (much like the Clinton handshake of 2000), an adviser to Obama said that Obama wanted to improve relations with Cuba, yet had concerns about human rights on the island.