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"As you know, Dr. Kleiner, your former professor at the Massachusetts Institute of Technology, originally recommended you for contact by the Civilian Recruitment Division."
Also, both Barney's letter of reassignment and Dr. Green's letter imforming her of the change of sample are signed LM and CC: Dr. Kleiner.
Perhaps Dr. Kleiner was head of Anolamous Materials/Staff and LM was the other(or just Breen's secretary of course)