julie bandaras is here with more. hi, julie. >> a u.s. a victory, throwing out a lawsuit against new federal rules requiring gun dealers in four states, bordering mexico, to report the sale of multi-semi-automatic rifles. in an effort to curb border violence the u.s. bureau of alcohol, tobacco, firearms an explosives ordered 8,000 gun dealers in texas, arizona, new mexico and california to report the sale of two or more semi-automatic rifles to the same person within five business days. the decision came that's atf has been under scrutiny in recent months after fast and furious meant to track guns being smuggled into mexico, instead resulted in thousands of weapons falling into the hands of drug cartels. two of those guns, as you said, were found at the murder scene of u.s. border patrol agent brian terry, killed 13 months ago, during a shootout in arizona, near the border. mexican officials, meanwhile, have complained bitterly about guns, illegally coming from the united states. and, repeatedly asked the u.s. government to stem the flow