" The American Medical Association's guide for physicians says studies show "a clear link between brief exposure to violence on TV or movies and increases in aggressive and even physically violent behavior in young persons.

WSJ: Campbell Brown: The President Gives Hollywood a Pass on Violence

Brief exposure to high levels of PCBs and dioxins may cause skin lesions and affect the liver (the tolerated daily intake for dioxin is about 1 picogram - one trillionth of a gram - per kg body weight).

CNN: THE GREAT DIOXIN SCARE