Two Mexican nationals were arrested in Colorado last month after authorities found them transporting 180,000 rounds of ammunition during a traffic stop, federal officials have announced. Caesar Ramon Martinez Solis, 41, and Humberto Ivan Amador Gavira, 24, were pulled over on March 26th in Cañon City, according to the U.S. Attorney’s Office in Colorado. Detectives from Fremont County stopped their white Chevrolet van after it failed to dim its headlights, didn’t signal a turn, and had a broken license plate light, according to an arrest affidavit.