Neuroscientist Dr. Gregory Berns has likened America’s financial system to a drug addict. If the drug is money, and if the financial sector is in withdrawal, what would the stimulus package mean for Wall Street? We turn to Dr. Berns for his prognosis. Dr. Berns is the Director of the Center for Neuropolicy at Emory University and the author of Iconoclast: A Neuroscientist Reveals How to Think Differently.