GENERAL MOTORS, which, like Ford, lost $1.3 billion in the third quarter, will lay off 30,000 workers and close or downsize 12 plants in a desperate effort to avoid bankruptcy. Kodak is frantically attempting to build its digital business as the use of film declines. Knight Ridder shops for a buyer as the collapse of its local newspaper monopolies destroys its viability. Several airlines have declared bankruptcy as their uneconomic cost structures cripple their ability to compete for customers. Telecoms companies watch the value of their wires drop as cell phones, voice-over-internet, and cable companies poach their customers. Blockbuster flirts...