As a result, shrinks are the only professionals who are not allowed to offer their expertise to journalists trying to explain complicated issues to the public. Indeed, scientists can tell us about global warming, engineers can tell us if a bridge is about to give way, and soldiers can tell us if an enemy is weak or strong. But the mental health of the President? The experts are handcuffed, even as we elected the most paranoid President since Nixon and, clearly, the most self-deluded and dangerous American political figure since Aaron Burr.