convenience stores are in on the fraud. it is a story that should outrage all of us and police are trying to put a stop to it. cnn's john zarrella. >> reporter: female's getting out and walking toward the front door. >> reporter: an under cover agent walks into a small convenience store in tampa. wearing a recording device she approaches the cashier with a deb ied card. while they're negotiating she picks up some chips, soda and cigarettes, she presses the clerk. >> really wanted a hundred back. >> the agent leaves with the cash and the goods. >> you see her out. small bag in her hand. >> reporter: what the store clerk just d florida department of law enforcement officials say is illegal and they say you should be outraged. >> it's directly stealing from the taxpayers of the united states. the debit card the undercover agent use side called an