cnn.gifCNN's Jeanne Meserve and producer Mike M. Ahlers went along with an undercover TSA official on a covert test of airport screeners in Tampa. The story is fascinating and shows in detail how screeners continue fail to find mock bombs in secondary screening scenarios.

In defense of the troubling findings, The TSA says techniques like as the one used in Florida are already known to terrorists and openly discussed on terrorist web sites. The TSA also says it is no longer "running from tests" but embracing "the idea that testing has a value."