This is from "The Rise of the American Police State," done by the Rutherford Institute: "...some may argue that [police officers] use dark colors to daunt and control the citizenry. This argument is strengthened by the actions of the New York Police Department during a string of riots in the 1960s. After the riots, the police department replaced the dark blue uniforms with a shade of blue considered friendly and pacifistic. However, after the attacks on the World Trade Center in 2001, the police department returned to the dark blue colors, since they were proactively trying to thwart terrorism." Is that supposed to be sarcasm? I really don't know. How would the NYPD itself try to thwart terrorism, when that is up to the CIA, the FBI, the Department of Homeland Security and the TSA (Transportation Security Administration)? Just doesn't make sense.