The Internet offers a million ways to waste time. It also has job announcements, special interest information or propaganda, depending on one's viewpoint and myriad destinations that might imply a lack of loyalty on the part of employees who visited them. It won't be long before every manager can get daily tattle sheets on where staff members have been cybersurfing. But blocking Dilbert is cruel and inhuman. Next we'll have to leave our newspapers and paperback books with the guard at the front door.
Employees have no monopoly on frivolous game-playing.
If managers can create their own lists of banned sites, they could also prevent employees from visiting rival agencies. Supervisors at the Park Service can block access to the Forest Service, and vice versa. Army officers can prevent browsing of Navy sites. Directors can keep their staffs under control, eliminating rampant horizontal communication that, in their view, undermines the authority of the organization's management superstructure. It appears that LittleBrother can be made into a major threat to employee privacy and inhibitor of freedom of inquiry and expression.