Am I endangering my health by drinking Pepsi One?

General Questions
#1

So, I’ve just read a lot of really scary articles suggesting I’m exposing myself to high levels of a carcinogen named 4-MeI by drinking Pepsi One. But I’ve also read that this chemical is linked to reducing (?!) cancer in mice. There seems to be a lot of contradictory information. Here is a typical article: http://www.cbsnews.com/news/caramel-coloring-chemical-linked-to-cancer-found-in-too-high-levels-in-some-colas/

I’ve been a big drinker of this soda since my teens. I drink at least a few cans a day. What are the chances that I am putting myself at risk of cancer by drinking this?

#2

They’re still assessing the risk, according to the State of California.

http://oehha.ca.gov/public_info/facts/4MEIfacts_021012.html

But… considering that caramel coloring has been made and used for a LONG time in soft drinks, I personally think that if there was a noticeable cancer risk from them due to 4-MEI, then it would probably have come to light by now, considering the sheer volume they’re consumed in, and the huge number of people who consume them.