Last week, Reps. Waxman (D-CA) and DeGette (D-CO) sent letters to eight companies that make rice products, asking for documents on how they monitor arsenic in their products and what they know about the possible health effects of the carcinogen. Recent studies have detected elevated levels of arsenic in rice and a variety of rice products. The FDA is currently analyzing rice samples to better understand the levels of arsenic exposure and associated health risks.