Snow covers a storm-damaged home in Henryville, Indiana, March 5, 2012. Calm weather gave dazed residents of storm-wracked U.S. towns a respite on Sunday as they dug out from a chain of tornadoes that cut a swath of destruction from the Midwest to the Gulf of Mexico, killing at least 39 people.
- Athletes probably won't break records at the Rio Olympics. In most events, top performers have already reached the limits of human biology, scientists say.
- Some Bernie-or-Busters protested Hillary Clinton's DNC speech, but a tightly organized plan — from chants to secret allies — kept heckling off TV.
- Sixteen people have died after a hot air balloon crashed in Texas.