James McKinley of the NYT reports:
Federal authorities are investigating the origin of one of the largest gun seizures ever on the Mexico border: a cache of 147 assault rifles with banana clips and bayonets discovered in a truck being driven down a residential street in Laredo on Saturday, the local police said. Officers acting on a tip pulled over the truck and arrested the men inside after a short chase. Inside, they discovered 147 new AK-47 rifles, still in their boxes; 263 high-capacity magazines; 53 bayonets; and 10,000 rounds of ammunition — enough for a small army. Federal agents from Immigration and Customs Enforcement took the men into custody.