it s because of a rat infestation at their tent city. d.c. mayor vincent gray wants police to remove them from mcpherson square. fox 5 s sheri lee is live at the square with the latest. good morning, sheri. reporter: good morning, tony, good morning, allison. the occupy d.c. group here at mcpherson square does not have a permit, but they have been allowed to stay. so far we have not seen any attempt to move them out of here, but the mayor says the situation here is dangerous, it is a health hazard and he wants them out. the encampment has tents but in the weeks they ve been here, the health department says it s been infested with rats, posing a risk of disease. a report blamed improper disposal of trash and human waste. mayor gray sent a letter to the park police, asking to get rid of the occupiers at mcpherson square. the park service had no comment except to say that the protesters have a right to freedom of speech. mayor gray wants the mcpherson protesters to join anothe