the beverage association of america says the cspi is using scare tactics insisting there is no evidence of carcinogens in soft drinks. and some doctors say there's really not much danger. >> you would have to drink about 10,000 bottles of coke a day for a lifetime in order to get that amount to see any effect. >> reporter: for the cspi any risk is too much. and they are hoping caramel color use soon fizzes out. the food and drug administration told us it is now assessing any potential risks and would then decide whether regulation is needed. kristen dahlgren, nbc news, washington. >>> christina loren takes a look at the very rainy forecast for us. good morning, christina. >> good morning, scott. yes, the rain continues. we have the wet setup. the pineapple express is back. this morning and today we'll see a lot of wet weather, but it will be hit or miss. it is not consistent or steady by any means. we are more concerns about the lightning strikes pushing into the east bay right now. so here's the realtime doppler radar. it looks like this thunder cell just fell apart, but you are still

even cspi acknowledges the cancer risk is small. >> if you're consuming a reasonable amount of these sodas, you're actually getting very small amounts of these chemicals. and i don't think there is any real danger. >> reporter: not everyone is willing to change their drinking habits. >> i'm pretty sure everything has chemicals that cause cancer for a person in like the future. >> reporter: just last month, california added one of the chemicals to the prop 65 list of known carcinogens. now, as early as next year, you may see prop 65 warning labels on certain colas, once that exceed a safe limit set by the state. right now the state proposes a limit of 16 micrograms a day. the center contends that some 20-ounce colas contain 200 micrograms. so... >> go to the uncola. [ laughter ] >> yes. >> also, kim, thanks. we'll be right back. ,,,,,,,,,,,,,, taking on gangs. so why is that plan on hold? "i'm still trying to formulate it - i'm trying >>> i'm dana king. here's what we're working on for eyewitness news at 6:00. the police chief has a plan for taking on gangs. so why is that plan on hol

even cspi acknowledges the cancer risk is small. >> if you're consuming a reasonable amount of these sodas, you're actually getting very small amounts of these chemicals and i don't think there is any real danger. >> reporter: not everyone is willing to change their drinking habits. >> i'm pretty sure everything has chemicals that uhm, cause cancer for a person in like the future. >> reporter: just last month, california added one of the chemicals to the prop 65 list of known carcinogens. dr. kim mulvihill, cbs 5 healthwatch. >>> as early as next year, you may see prop 65 warning labels on colas that exceed a safe limit that's set by the state. right now the state is proposing ally. a limit of 16 micrograms a day. >>> i wondered how this is going to turn out. now we know. ibm's super-computer is the new jeopardy champion. watson triumphed his human opponents winning nearly $78,000 last night. jeopardy fans right here in san francisco came together last night to see the end of the three-day competition. first round looked promising for us guys, the humans but in the end, flesh and blo