The family of a slain Border Patrol agent has sued federal officials over the botched "Fast and Furious" gun operation.

Agent Brian Terry was mortally wounded on Dec. 14, 2010, in a firefight north of the Arizona-Mexico border between border agents and five men who had sneaked into the country to rob marijuana smugglers.

Two assault rifles acquired by a straw buyer for the gun smuggling ring targeted in the "Fast and Furious" operation were found in the aftermath of the shootout near Nogales.