MEXICO CITY — Mexican soldiers seized nearly 10 tons of marijuana, a machine gun, scores of assault rifles and three grenades in a raid Thursday just across the border from Texas, the military said. Soldiers stopped a fleeing minivan and searched a nearby building outside the city of Miguel Aleman, across from Roma, Texas. Inside, they found the marijuana, 89 assault rifles, more than 80,000 rounds of ammunition and a host of other weapons, a Mexican Defense Department statement said. Five men, from ages 28 to 62, were arrested, according to the statement. The seizure follows weeks of bloody confrontation...