The Food and Drug Administration has begun warning consumers that baby bottles and plastic containers containing Bisphenol-A, commonly known as BPA, may pose hazards to your health. The FDA recently cautioned the American public not to put liquids into, or to heat, containers made of BPA. David Biello, Energy and Environment Editor at Scientific American, Americas oldest continually published magazine, joins us to explain the history of BPA, the science behind it, and the dangers to your health it may cause.