STUNNING LACK OF LITERATURE on the obvious: (1) chlorine reacts with organic material in water to make hundreds of carcinogenic byproducts; (2) epidemiology shows a significant portion of GI cancers are correlated with chlorinated drinking water; (3) the gut is full of organic matter; (4) drinking water is full of chlorine; (5) the missing experiments? (6) Chlorine reactions with gut contents.