Some of the firearms straw-purchased in Arizona for Mexican drug cartels, and allowed to âwalkâ by the Bureau of Alcohol, Tobacco, Firearms and Explosivesâ Operation Fast and Furious, may have been paid for with taxpayer money, by paid informants of the Drug Enforcement Administration and FBI, according to Rep. Darrell Issa (R-Calif.) and Sen. Chuck Grassley (R-Iowa).
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