The White House is urging US agencies to set up “insider threat” programmes to identify dissatisfied workers who may leak confidential information, reports suggest.
The move follows the publication of around 250,000 secret US diplomatic cables by whistle-blowing site WikiLeaks.
The memo, sent this week to senior officials at all agencies using classified material, recommends they make use of psychiatrists and sociologists to monitor the “relative happiness” or “despondence and grumpiness” as a way to asses the trustworthiness of employees.
It also asks agencies to identify any contact between employees and the media, as well as monitor foreign contact and travel to help root out potential insider threats.
US Army Pte Bradley Manning is currently held on suspicion of passing the documents on to WikiLeaks.
US officials are yet to comment on the memo.