John Poindexter

John Poindexter (born August 12, 1936) is a retired American naval officer and Department of Defense official.

He was Deputy National Security Adviser and National Security Adviser under the Reagan administration and was one of the major players in the Iran-Contra affair, for which he was convicted in April 1990 of multiple felonies. However, those convictions were later overturned on a technicality in a 2-1 decision. Essentially, the judges held that witnesses had been influenced by Poindexter's testimony before Congress and since he had been granted immunity for that testimony, the guilty verdict was overturned.

More recently, he served a brief stint as the director of the DARPA's Information Awareness Office under the George W. Bush administration.