When the administration decided to pursue the Pentagon Papers leakers, it was Krogh who approved the September 1971 burglary of the office of Lewis Fielding, the psychiatrist seeing Daniel Ellsberg. Liddy and E. Howard Hunt would commit the actual break-in. Ironically, Ehrlichman, who himself went to prison for Watergate related crimes, would later write in his memoirs this was an example of "such doubtful personal judgment ... that it has to be said materially contributed to the demise of the Nixon administration." Krogh's employment with the SIU was terminated when he refused to authorize a wiretap.