A drawing: a threat to Canadian national security

"The government of Canada on Friday removed detailed architectural drawings of a secret electronic eavesdropping station that had been posted online. About a dozen drawings, which detail the interior as well as mechanical and electrical specifications of the command center at Canadian Forces Station Leitrim in Ottawa were posted on Wednesday as part of a construction tender by Public Works and Government Services Canada. The military station conducts foreign communications interceptions and other work for the Communications Security Establishment Canada, Canada’s electronic spy agency."