Bolt’s 9.63 was a new Olympic record and a .06-second improvement on his gold-medal time from Beijing. He becomes the first man since Carl Lewis in 1984 and ‘88 to repeat as Olympic champion. Blake was second, with a 9.75; Gatlin took bronze with a 9.79.
- President Obama unveiled a climate change plan on Monday that calls for federal limits on the amount of carbon power plants can produce.
- Puerto Rico has failed to make a $58 million debt payment, and credit rating agency Moody's says the U.S. territory is in default.
- The man accused of fatally shooting a Memphis, Tennessee, police officer on Saturday has turned himself in.