Cola and Cancer?

   I'm already not a fan of soda because of the sugar content, now the consumer group the Center for Science in the Public Interest is giving me another reason to keep cola products out of my refrigerator.  Will this information change the way you feel about America's favorite carbonated brown beverage? 

From CSPI: 
WASHINGTON—The “caramel coloring” used in Coca-Cola, Pepsi, and other foods is contaminated with two cancer-causing chemicals and should be banned, according to a regulatory petition filed today by the Center for Science in the Public Interest.
In contrast to the caramel one might make at home by melting sugar in a saucepan, the artificial brown coloring in colas and some other products is made by reacting sugars with ammonia and sulfites under high pressure and temperatures. Chemical reactions result in the formation of 2-methylimidazole and 4 methylimidazole, which in government-conducted studies caused lung, liver, or thyroid cancer or leukemia in laboratory mice or rats.
The National Toxicology Program, the division of the National Institute of Environmental Health Sciences that conducted the animal studies, said that there is “clear evidence” that both 2-MI and 4-MI are animal carcinogens. Chemicals that cause cancer in animals are considered to pose cancer threats to humans. Researchers at the University of California, Davis, found significant levels of 4-MI in five brands of cola.
“Carcinogenic colorings have no place in the food supply, especially considering that their only function is a cosmetic one,” said CSPI executive director Michael F. Jacobson. “The FDA should act quickly to revoke its approval of caramel colorings made with ammonia.”
  Five prominent experts on animal carcinogenesis, including several who have worked at the National Toxicology Program, joined CSPI in calling on the FDA to bar the use of caramel colorings made with an ammonia process.