In Denver, the local CBS News affiliate has revealed city police have set up dozens of metal cages inside a warehouse to hold jailed protesters at the upcoming Democratic National Convention. The five-by-five-yard cages are made out of chain link fence material and secured by rolls of barbed wire. A sign reads “Warning! Electric stun devices used in this facility.” Protesters have dubbed the site “Gitmo on the Platte,” a reference to the Guantanamo Bay prison and the Platte River.