The earthquakes yesterday scared people along the East Coast, but the truly terrifying earthquake may strike the Midwest—and FEMA is preparing for it. Early in the morning of May 16, while most of America was being titillated and transfixed by the appearance in court of the then-suspect Dominique Strauss-Kahn, an urgent message was suddenly received at the headquarters of the Federal Emergency Management Agency (FEMA) in Washington, D.C Reports were streaming in of a catastrophic earthquake, magnitude 7.7, that had struck the Midwest near the town of Marked Tree, Ark. First reports were alarming: phenomenal property damage; casualty figures were...