National Geographic: Response teams were deploying remote-operated submarines in an urgent effort Sunday to stop the flow of oil from the site of the accident in the Gulf of Mexico that destroyed the BP-leased rig, the Deepwater Horizon. If the gambit fails, it could take months to stop the leak–now estimated at 1,000 barrels (42,000 gallons/160,000 liters) per day of crude oil, according to the joint U.S. government and oil industry task force. That means the scene about 50 miles (80 kilometers) …