This is a talk given several months ago by U. Maryland physics professor Robert Park. He was chairman of the physics department there, and author of the great book [i:d5db235633]Voodoo Science[/i:d5db235633], which I highly recommend.
It has a good webpage rundown of the talk. The podcast itself lasts a little over an hour and is well worth it. He gets in to a lot of interesting science, including intelligent design, homeopathy, power-lines causing cancer, cars running on water, and so on.
Many of these issues are treated in more detail in his book as well. He is a very smart and articulate scientist. We are lucky to have him.