Front-line agents and Sen.Charles Grassley are sharply questioning a federal investigation that allowed hundreds of guns to move across the

The Bureau of Alcohol, Tobacco, Firearms and Explosives is under fire, but supporters say the agency lacks the tools needed to conduct succe

Arizona firearms dealer worried guns involved in ATF sting would end up with bad guys

Legislators want to crack down, but NRA says history shows regulation is not effective

Agency's crippled oversight of the industry means troubled gun dealers can stay open for years.

Federal gun cops handicapped by weak laws, stagnant budgets and Congressional restrictions