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Zardari set to step down as Pakistan president

Pakistani President Asif Ali Zardari, pictured July 1, 2011, at Downing Street in London. Zardari steps down after five years in power but has been criticised for the state of the country's security and its economy.Pakistan President Asif Ali Zardari steps down on Sunday having defied expectations by holding onto power for a record five years but facing criticism for leaving the economy and security in a shocking state.