 For Rocky Mountain News Network, I'm Kristen Thoburn. Ammunition vending machines are on their way to some grocery stores in Colorado. The American rounds machines, which you can currently find in Oklahoma, Alabama, and Texas, require a valid ID to be scanned before the machine takes a picture of the purchaser who must be 21 years or older. It does a 92-point facial recognition, which I've been told is higher than the TSA's.