I’ve always regretted not taking more biology and chemistry classes in college. But, now, this lowly Poli Sci major knows better how scientific fact is made in America.
…[P]rior to the May 2009 study, the National Cancer Institute had also performed a preliminary study that linked formaldehyde to leukemia, but members of Congress including Sens. James Inhofe, R-Okla., and David Vitter, R-La., managed to delay the EPA from officially designating the chemical as a “known carcinogen.”
(The EPA in June, however, released a draft assessment  of formaldehyde that supports that designation, but it’s not yet official.)