CBS 5 Investigates With Anna Werner

Copier warehouses across the country are filled with row upon row of used machines ready for resale. But CBS 5 Investigates found many of them hold private and sensitive information never cleared from internal hard drives. What most people think of as copy machines are these days known as "multi-function machines" that also scan, fax and even email. But to do all that, the machines store copies of documents on hard drives in a range of sizes.