DoJ officials took months to correct `` misleading '' info , Sen. Charles Grassley says . Score: 6 Attorney general says `` gun-walking '' tactics `` must never happen again '' Republican critic says existing gun control laws were n't enforced .
DoJ officials took months to correct `` misleading '' info , Sen. Charles Grassley says . `` We are losing the battle to stop the flow of illegal guns to Mexico , '' Holder says . Attorney general says `` gun-walking '' tactics `` must never happen again '' Republican critic says existing gun control laws were n't enforced .