President Obama boards Air Force One at Yangon International Airport in Yangon, Myanmar, on Nov. 19, 2012, en route to Phnom Penh International Airport in Phnom Penh, Cambodia, where he will attend the East Asia Summit. (Associated Press)
Cambodia's Prime Minister Hun Sen, left, shakes hands with ASEAN Secretary-General Surin Pitsuwan as Hun Sen handed over a signed document to Surin after the singing ceremony of adoption of the ASEAN Human Rights Declaration during the 21st Association of Southeast Asian Nations, or ASEAN Summit in Phnom Penh, Cambodia, Sunday, Nov. 18, 2012. (AP Photo/Vincent Thian)
From left, Thein Sein, president of Myanmar; Benigno Aquino III, president of the Philippines; Lee Hsien Loong, prime minister of Singapore; Yingluck Shinawatra, prime minister of Thailand; Nguyen Tan Dung, prime minister of Vietnam; and Hun Sen, prime minister of Cambodia, join hands after a signing ceremony of adoption of the ASEAN Human Rights Declaration during a summit for the association in Phnom Penh, Cambodia, on Sunday. (Associated Press)
Cambodia's Prime Minister Hun Sen, left, shakes hands with ASEAN Secretary-General Surin Pitsuwan as Hun Sen handed over a signed document to Surin after the singing ceremony of adoption of the ASEAN Human Rights Declaration during the 21st Association of Southeast Asian Nations, or ASEAN Summit in Phnom Penh, Cambodia, Sunday, Nov. 18, 2012. (AP Photo/Vincent Thian)
** FILE ** In this Nov. 7, 2012 photo, President Obama speaks at his election night party, in Chicago. Fresh from his re-election, Mr. Obama will embark on a trip to Southeast Asia and become the first U.S. president to visit Cambodia as well as the once pariah nation of Myanmar. (AP Photo/Chris Carlson, File)
A phoenixlike float with the casket carrying the body of former Cambodian King Norodom Sihanouk arrives at the Royal Palace in Phnom Penh, Cambodia, as mourners lining the streets pay their respects on Wednesday, Oct. 17, 2012. (AP Photo/Wong Maye-E)
A phoenixlike float with the casket carrying the body of former Cambodian King Norodom Sihanouk arrives at the Royal Palace in Phnom Penh, Cambodia, as mourners lining the streets pay their respects on Wednesday, Oct. 17, 2012. (AP Photo/Wong Maye-E)
** FILE ** Cambodia's King Norodom Sihanouk (left) introduces his son and successor, King Norodom Sihamoni, upon their arrival at Phnom Penh airport in Cambodia in 2004. (AP Photo/Andy Eames)
** FILE ** Cambodia's King Norodom Sihanouk (left) introduces his son and successor, King Norodom Sihamoni, upon their arrival at Phnom Penh airport in Cambodia in 2004. (AP Photo/Andy Eames)
