Obviously the should be stopped, but the Federal Government should be responsible for stopping the way most corporations do through internet security firewalls which filter out and block access to any site considered objectionable rather than put the onus on employees to make sure nobody else uses their individual workstation or face being blamed for accessing such sites! The GOVERNMENT is responsible for making sure their computer systems are secure from access to such sites which could infect government computer systems with spyware, virus or access from foreign theft or manipulation!