It's a stunning attack, lightning quick and chilling in its execution. A merciless gang of terrorists seizes the Presidio County Courthouse in the midst of the worst blizzard West Texas has seen in a century. Loaded down with enough fire power to outfit an army, the attackers slaughter dozens, take all survivors hostage, and assume complete control. The nation--and the U.S. government--are at their mercy. Or so they think. They don't know that a seasoned...