Two federal officials have been reassigned and a third has resigned in the wake of controversy over "Operation Fast and Furious," the controversial sting that is also known as the "Gunwalking Scandal." Kenneth Melson (pictured), acting director for the past 28 months of the Bureau of Alcohol, Tobacco, Firearms and Explosives, will become senior advisor on forensic science in the Justice Department's Office of Legal Programs, Attorney General Eric Holder announced Tuesday. U.S. Attorney for Arizona Dennis Burke, who approved the flawed operation that allowed weapons to be delivered to drug gangs, submitted his resignation to President Obama effective immediately. Emory Hurley, a prosecutor in the U.S. Attorney's Office in Phoenix who worked on the Fast and Furious investigation, has been reassigned from criminal cases to civil casework.

The reassignments appear to be an ongoing shakeup at ATF, where two assistant Special Agents in Charge of the operation, George Gillett and Jim Needles have previously been reassigned to other positions, CBS News reported.

"Fast and Furious" was reportedly designed to gather intelligence on gun sales as ATF agents observed sales of thousands of high-caliber weapons to alleged middlemen for drug cartels operating on both sides of the Mexican border.

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Photo of Kenneth Melson: AP Images