Not every 4th of July celebration went off smoothly last night. In San Diego, abound 18 minutes worth of fireworks exploded in ten seconds. We'll talk to someone who saw the 'premature ignition' in person. And in honor of one failure, KPCC's Sanden Totten brings us his favorite legendary fails in recent history. Plus, John Moe brings us the latest in the tech world. Ever wonder why Olympic athletes are running and swimming faster? The answer might not all be in actual performance improvements, according to Steve Haake. And the Sklars are back to round up the latest highlights in sports.