Grassley questions if the White House tried to cover-up ATF's ‘Fast & Furious’

Sen. Chuck Grassley (R-Iowa) questioned Friday whether high-ranking White House officials tried to cover up their knowledge of the "Fast and Furious" gun-trafficking operation.  

“At the highest levels of government, who gave the OK to go ahead for this stupid operation [that] led to the death of [Border Patrol Agent Brian] Terry and who knows what else?” Grassley asked.

Grassley inquired with the Justice Department about details pertaining to a covert operation along the U.S.-Mexico border that resulted in Terry's death. The operation was nicknamed Fast and Furious because it was aimed at supplying Mexican drug cartels with U.S. guns so the cartels could be tracked by their firearms use. 

Grassley spoke to Fox News via phone about developments in the case after several White House emails pertaining to the operation became public.