` ` Operation Fast and Furious '' involved more than 2,000 guns , sources tell us . Fewer than half have been found in the United States and abroad , they say . Last week , the embattled acting director of the ATF , Kenneth Melson , was interviewed by congressional investigators in a closed session . The operation has been sharply criticized by members of Congress .
` ` Operation Fast and Furious '' involved more than 2,000 guns , sources tell us . Fewer than half have been found in the United States and abroad , they say . The operation has been sharply criticized by members of Congress .