After more than 20 years, the U.S. Environmental Protection Agency (EPA) has finally determined that trichloroethylene (TCE), a chlorinated solvent used primarily for removing grease from metal, causes cancer. The assessment was finalized by the EPA’s Integrated Risk Information System (IRIS), an important but troubled program that is tasked with providing the public with critical information about dangerous chemical exposures.

The Obama administration's efforts to protect scientific integrity moved forward recently with the submission of five finalized agency policies and 14 draft policies, but progress has been slow and haphazard. The administration recognizes that sound, uncensored science is critically important to protecting public health and the environment. The administration also understands that agencies should foster a culture of scientific integrity that includes effective policies and oversight to protect science from political manipulation and research misconduct. However, it has yet to undo the damage wrought by the previous administration.