Watergate investigators find a memo addressed to John Ehrlichman detailing plans to burglarize the office of Daniel Ellsberg’s psychiatrist (see September 9, 1971). The one-page memo was sent to Ehrlichman by former White House aides David Young and Egil “Bud” Krogh, and was dated before the September 3, 1971 burglary. The memo was given to investigators by Young, who has been granted immunity from prosecution in return for his cooperation. Young, says Justice Department sources, will testify that Ehrlichman saw the memo and approved the burglary operation. Ehrlichman, through his attorney, denies any advance knowledge of the burglary. Young and Krogh directed the day-to-day operations of the so-called “Plumbers,” a group of White House and Nixon campaign operatives charged with stopping Krogh has testified in an affidavit that he was given “general authorization to engage in covert activity” to obtain information on Ellsberg by Ehrlichman. Krogh won Senate confirmation as an undersecretary in the Department of Transportation, but has since resigned his post. Young was a member of the National Security Council and a former appointments secretary to National Security Adviser Henry Kissinger; he resigned in April. [Washington Post, 6/13/1973]