There are 13 states in the USA which currently have passed anti-free speech, anti-activist food slander laws:
Alabama, Arizona, Colorado, Florida, Georgia, Idaho, Louisiana, Michigan (passed just last week), Mississippi, Ohio, Oklahoma, South Dakota, Texas.
"Food Slander" Is Now a Crime
by Gar Smith
On August 17, a group of activists dumped a mixture of Diet Coke, NutraSweet (aspartame) and rBGH-enhanced milk (produced from cows injected with genetically engineered hormones) onto the pavement at Atlanta's Cheshire Bridge Shopping Center.
The demonstration, sponsored by the Pure Foods Campaign (PFC), took its inspiration from the Boston Tea Party. But while dumping tea was considered a patriotic act in Boston Harbor, dumping soda, sweetener and milk is considered a crime in Georgia.
"Food slander" laws, in force in Georgia and at least ten other states, make it a civil crime to denigrate or criticize food products without a "scientific basis," explained PFC coordinator Ronnie Cummings. "Industry lobbyists admit that these laws are probably unconstitutional... their real purpose is to intimidate activists and concerned consumers."
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In Georgia, South Dakota, Alabama, Florida, Idaho, Texas, Arizona, Oklahoma, Mississippi, Colorado and Louisiana it is now against the law to publicly criticize corporate food products under so-called "food disparagement" laws promoted by agriculture, chemical and biotechnology industry lobbyists. Similar laws are under consideration in Ohio and Illinois. "These laws are intended to curtail the right to free speech, to make it illegal to hand out leaflets or to dump rBGH milk in the gutter," Cummings charged.
http://www.organicconsumers.org/slancrime.html