"Nomchongang was the operating interest in the Syrian sale, " said Dennis Wilder, who served as President George W. Bush's top Asia adviser until January.

WSJ: Tests Point to Spread of Weapons Trade

Dennis Wilder, the National Security Council's senior director for Asia told reporters aboard Air Force One as President George W. Bush was on his way to Japan.

BBC: G8 summit: The key issues

Dennis Wilder, a former adviser to the National Security Council under President Bush, says there is a dangerous lack of knowledge even about basic issues such as China's nuclear-alert system.

ECONOMIST: China is piling up more weapons than it appears to need

One such email in November 2009 purported to come from Dennis Wilder, a former Asia specialist on the National Security Council in the George W. Bush administration who was at the Brookings Institution at the time.

WSJ: Cyberspies Target China Experts in U.S.