It turns out that depression may not be a mere trade-off for a vigorous immune response. Dr. Miller suggests that depressive symptoms like social withdrawal, lack of energy, and a loss of interest in once enjoyable activities were actually advantageous to our ancestors.
For America, the irony of the rise of Mohamed Morsi is that this colorless functionary of the Muslim Brotherhood is the first Egyptian ruler steeped in American ways. His doctorate in engineering comes from the University of Southern California, which he earned in 1982.
Global regulators have a peculiar way of assessing the soundness of big banks: Ask bankers how risky their investments are, then figure out if they have enough capital to absorb the potential losses.
This method, known as risk weighting, has failed repeatedly -- most spectacularly during the 2008 financial crisis.