Here's another case of a dumb journalist, but this doesn't surprise me coming from John Stossel! Man, don't take the word of a village idiot about helmets, in fact don't take his word for anything; go down to your local emergency room, your local EMT or firestation, your police and ask them about the validity of wearing a helmet. You will find an overwhelming support for helmets because they've seen them work and they've seen those die or suffer major brain trama that would not have been all that serious if they had worn a helmet.
If you think that John Stossel is correct then go ahead and ride without a helmet...but I wonder if John Stossel would be willing to face a lawsuit should someone be seriously injured or killed because they followed his advice?