Why we should be careful about legislating preventive interventions.

We should have learned from infectious disease legislation that legal interventions are hard to modify. This is why in most states Boards of Health are empowered to set disease reporting standards and immunization interventions. Just as New York is setting standards for Transfats we find new information from Brandeis University that this may not be the solution. But once legislated how does one change an intervention. Look at how long it took to modify the Delaney amendment to food and drug codes in Congress.