It's not like they're writing stories about the sun coming up in the east and setting in the west.
This is a pretty obvious piece of knowledge I would think.
High-powered weapons prized by Mexican cartels
Survey shows ‘bigger is better' with guns smuggled from U.S.By Dan Freedman - Hearst newspapers
WASHINGTON — Convicted gun smuggler John Phillip Hernandez wasn't the kind of customer Bushmaster Firearms International had in mind when he bought 14 of its .223-caliber AR-15s at Houston-area gun shops in 2006 and 2007.
Bushmaster describes itself as a “leading supplier” of AR-15 rifles, a civilian clone of the U.S. military's standard-issue M16, “for law enforcement, security and private-consumer use.”
But the weapons Hernandez and his associates bought wound up in the hands of gunmen from Mexican drug cartels, including a Bushmaster .223 that was among the weapons used to kill four police officers and three secretaries in Acapulco, an attack dubbed “the Acapulco police massacre.”