The Police Chief of Long Beach has confirmed that his department's policy is to detain photographers who do nothing more than take pictures in public places, and that he neither has, nor plans to implement, any guidelines for these detentions. He classes photography with other "suspicious activity" such as "attempts to acquire illegal or illicit biological agent (anthrax, ricin, Eboli, smallpox, etc.)" and "In possession, or utilizes, explosives (for illegal purposes)."
via boingboing.net