Photo - Sam Rainsy, center right, president of Cambodia National Rescue Party (CNRP) greets his supporters together with his party's Vice President Kem Sokha, center left, on his arrival at Phnom Penh International Airport in Phnom Penh, Cambodia, Friday, July 19, 2013. Thousands of cheering supporters greeted Cambodian opposition leader Sam Rainsy as he returned from self-imposed exile Friday to spearhead his party's election campaign against well-entrenched Prime Minister Hun Sen. (AP Photo/Heng Sinith)
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