The Department of Justice says its Office of Inspector General is conducting an independent investigation into the gunwalking Operation Fast and Furious, which Congress is already probing. Attorney General Eric Holder requested a transcript of Sen. Chuck Grassley and Rep. Darrell Issa from their secret July 4th meeting with Ken Melson, acting Bureau of Alcohol, Tobacco, Firearms and Explosives director. Holder and other DOJ officials have repeatedly said the DOJ’s Inspector General is doing its own internal investigation into what went wrong with Fast and Furious.