[DaveTesla]

Lookie here....
During President Lyndon Johnson’s administration Halperin had been in charge of compiling a classified history of U.S. involvement in Vietnam. As David Horowitz and Richard Poe reported: This secret history later emerged [in June 1971] into
public view as the so-called “Pentagon Papers.” Halperin
and his deputy Leslie Gelb assigned much of the writing to
leftwing opponents of the war, such as Daniel Ellsberg
who, despite his background as a former Marine and a
military analyst for the Rand Corporation, was already
evolving into a New Left radical…With Halperin’s tacit
encouragement – and perhaps active collusion – Ellsberg
stole the secret history and released it to The New York
Times…Not surprisingly, “The Pentagon Papers” echoed
Halperin’s long-standing position that the Vietnam War was
unwinnable, and ridiculed Presidents Kennedy and Johnson
for stubbornly refusing to heed those of their advisors
who shared this opinion.

[DaveTesla]

It gets worse....

Morton Halperin during the mid-1970s befriended Philip
Agee, a former-CIA-agent-turned-Communist who publicly
identified hundreds of purported American Central
Intelligence Agency agents. At least one of these agents,
Athens station chief Richard Welch, was murdered shortly
thereafter. Halperin flew to Europe to help Agee find safe
haven after Great Britain expelled him. In the U.S.,
Halperin opposed legislation to punish the outing of U.S.
undercover agents as Agee had done. Halperin has described
the CIA as “the subverter of everybody else’s freedom.”