There is a great article on Salon.com today. The author took a job as a security specialist during the RNC and wrote about it. My favorite line comes at the end of the following passage.
"In addition to my team of black-clad officers, there are hotel security personnel, Minneapolis police, an odd guardsman, state trooper or sheriff's officer, another squad of hired officers (from a different private firm), and members of the FBI, Capitol Police (in suits) and Secret Service (in nicer suits). If you include the Evangelicals, nearly every person at the RNC headquarters has a voice whispering in his ear."