In the wake of recent popcorn problems, questions about the safety of diacetyl, the additive that gives microwave popcorn its buttery flavor, have arisen. Several manufacturers have vowed to stop using the chemical as soon as possible. However, a promise does not equal action nor does it mean immediate safety. Fortunately, the United States House of Representatives has decided to take matters into its own hands. In a vote of 260 to 154, the House passed a bill that will force the Occupational Safety and Health Administration to limit diacetyl exposure in popcorn plants. Until official regulations can be prepared, the Labor Department will create interim standards, to ensure the health of factory workers. A companion bill has not been mentioned in the Senate, but it’s nice to know that someone on Capitol Hill is paying attention.