 Chips and candy. Apparently, these aren't the only things you can grab from vending machines. Grocery stores in Alabama, Oklahoma, and Texas now have computerized vending machines selling ammunition. The company, American Rounds, said its machines use an identification scanner and facial recognition software to verify the purchaser's age. The company equates it to using a computer tablet. But critics argue that selling bullets out of vending machines will lead to more shootings in the U.S.