Senators warn of carcinogen risk with e-cigarettes

WASHINGTON (AP) — Eight members of the U.S. Senate are calling on the Food and Drug Administration to examine new research suggesting that some electronic cigarettes can produce dangerous carcinogens similar to those from traditional cigarettes.

In a letter sent Thursday, the Democratic lawmakers say that the FDA should work to protect e- cigarette users and those nearby from cancer-causing vapors apparently produced by high-powered nicotine devices, known as tank systems.