Federal authorities sought to take back guns from thousands of people the background check system should have blocked from buying weapons because they had criminal records, mental health issues or other problems that would disqualify them.  A USA TODAY review found that the FBI issued more than 4,000 requests last year for agents from the Bureau of Alcohol Tobacco Firearms and Explosives to

retrieve guns from prohibited buyers.  It’s the largest number of such retrieval requests in 10 years, according to bureau records – an especially striking statistic after revelations that a breakdown in the background check system allowed a troubled Air Force veteran to buy a rifle later used to kill 26 worshipers at a Texas church last month. The FBI’s National Instant Criminal Background Check System (NICS) vets millions of gun purchase transactions every year. READ MORE