As part of the new strategy, Napolitano says the United States will double the number of border security teams, and will quadruple the number of border liaison officers who work with Mexican officials.

VOA: standard.2009.03.24

Mr Dudley says BP had contracted Stirling Group, a security firm, to provide liaison between the Algerian military, police and the community, although under Algerian law, private security firms are not allowed to operate at such facilities.

CNN: Oil and gas industry reviews security

National Security Adviser James Jones has already described the 21st century as the liaison century, where intelligence and security services cooperate energetically.

WSJ: Reuel Marc Gerecht: The Meaning of al Qaeda's Double Agent

Perhaps some evidence will emerge that his relationship with a mole in the Home Office, who leaked embarrassing material about departmental incompetence, jeopardised national security, or that the liaison was criminally corrupt.

ECONOMIST: Bagehot