The Daily Caller 
December 8, 2011
Fast and Furious was a Bureau of Alcohol, Tobacco, Firearms and Explosives  program overseen by the Justice Department. The operation facilitated the sale of thousands of weapons to Mexican drug cartels via straw purchasers. Straw purchasers are people who legally purchase guns in the United States with the known intention of illegally trafficking them into Mexico.
At least 300 people in Mexico were killed with Fast and Furious weapons, as was U.S. Border Patrol agent Brian Terry.
Holder first testified about Fast and Furious before the House Judiciary Committee on May 3, and then testified about it before the Senate Judiciary Committee on November 8. This is Holder’s third major appearance before a congressional hearing on the operation, and second before the House, which Republicans control.