It's never really a good idea to watch porn while at the office — especially if your job involves mildly important tasks like defending the US from missile attacks. Yet that's exactly what some employees at the Pentagon's Missile Defense Agency have been doing, according to a report from Bloomberg. Last week, MDA Executive Director John James Jr. issued a memo warning employees against using government computers to access pornographic websites, since such behavior could pose potentially serious security risks.

"Specifically, there have been instances of employees and contractors accessing websites, or transmitting messages, containing pornographic or sexually explicit images," James wrote. "These actions are not only unprofessional, they reflect time taken away from designated duties, are in clear violation of federal and DoD and regulations, consume network resources and can compromise the security of the network though the introduction of malware or malicious code."

There's no indication that this behavior has actually compromised the Pentagon's missile defense systems, though MDA spokesman Rick Lehner told Bloomberg that James' memo came in response to "a few people downloading material from some websites that were known to have had virus and malware issues." James went on to remind employees that their online actions are subject to monitoring at all times, and that anyone found to be in violation of protocol would be "subject to suspension and removal from federal service or MDA sponsored contracts."