A key measure of the economy, especially in manufacturing, just had the bottom fall out. Orders for durable goods dropped 13.2% in August, the worst decrease in almost four years, and a large signal that the American economy is diving into a recession: New orders for manufactured durable goods in August decreased $30.1 billion or 13.2 percent to $198.5 billion, the U.S. Census Bureau announced today. This decrease, down following three consecutive monthly increases, was the largest decrease since January 2009 and followed a 3.3 percent July increase. Excluding transportation, new orders decreased 1.6 percent. Excluding defense, new orders decreased...