I think that many used copiers available for resale still have the original dealer sticker on them. This would be the first step a lawyer would take to attach liability.
It seems odd that either 3/4 or 4/4 of the copiers that the CBS reporter picked were Toshiba. Balanced reporting would suggest he should have bought a mix of machines.
It also seems very long odds that 3/4 copiers the data expert examined had large amounts of personal data on them.
The report seems a little contrived to me. The Data Expert has some self interest to promote himself in this piece.