By By Laura Trowbridge Jul 5, 2010 in Internet The Transportation Security Administration has decided that access to certain websites will not be allowed on the federal agency's computers. All TSA employees received the email last Friday from the Office of Information Technology. The email stated that TSA employees will not be allowed to access five categories of websites that have now been regarded as "inappropriate for government access." The five categories are: Chat/Messaging; Controversial opinion; Criminal activity; Extreme violence (including cartoon violence) and gruesome content; Gaming. How TSA will determine a "controversial opinion" on a website is unclear. "There is also no explanation as to why controversial opinions are being blocked, although the email stated that some of the restricted websites violate the Employee Responsibilities and Conduct policy." TSA is blocking access to certain websites from its staff, including any Web pages that contain a "controversial opinion," according to an internal email that was obtained by CBS News All TSA employees received the email last Friday from the Office of Information Technology.The email stated that TSA employees will not be allowed to access five categories of websites that have now been regarded as "inappropriate for government access."The five categories are: Chat/Messaging; Controversial opinion; Criminal activity; Extreme violence (including cartoon violence) and gruesome content; Gaming.How TSA will determine a "controversial opinion" on a website is unclear. More about Tsa, Blocking, Controversial, Websites More news from tsa blocking controversial websites