Surin's tenure at ASEAN saw the rise of the regional organization into an important global player in international affairs. "He will be a hard act to follow", said Professor Amitav Acharya of the American University in Washington D.C. Under Surin's stewardship, Acharya said, ASEAN moved away from the principle of "non-interference in the internal affairs" of member states that had been used by some to deflect criticisms of their human rights records, and the grouping succeeded in setting up its own Human Rights Commission. The change in direction followed Surin's advocacy of a policy of "flexible engagement" towards Myanmar when he was Foreign Minister from 1997 through 2000. The policy called for increasing interactions with Myanmar leaders when they took steps towards reform, and building people-to-people contacts between nations. Prior to that, ASEAN had been criticized by some for its policy of "constructive engagement", which detractors said was simply a cover for business persons to ignore government repression. Acharya said that Surin would be remembered for guiding the grouping through challenging times, including the opening up of Myanmar, the United States entry into the East Asia Summit, and rising tensions over the South China Sea. "He was the most active, open and globalized ASEAN secretary-general ever", he said. An editorial in the "Jakarta Post" lauded Surin as the most effective of the 12 secretary-generals in the group's history.