potential use of drones 13 hours USA Today, 3-7-13 ninth-longest filibuster in Senate history filibuster almost 13 12 hours, 52 minutes "Rand Paul filibuster ranks among Senate's longest" USA Today one of the longest filibuster According to USA Today told USA Today ninth-longest filibuster in Senate history Sen. Paul’s effort only comes in 9th it was over "Rand Paul filibuster ranks among Senate's longest" 12 hours, 52 minutes According to USA Today