“We’ve got a process in place that pretty much outlines, in any specific facility, the path that mail goes through,” he said. “So if anything ever happens, God forbid, we would be able very quickly to track back to see what building it was in, what machines it was on, that type of thing. That’s the intent of the whole program.”
Processing machines take photographs so software can read the images to create a barcode that is stamped on the mail to show where and when it was processed, and where it will be delivered, Donahoe said.
The Mail Isolation Control and Tracking program was cited by the FBI on June 7 in an affidavit that was part of the investigation into who was behind threatening, ricin-tainted letters sent to Obama and Bloomberg. The program “photographs and captures an image of every piece of mail that is processed,” the affidavit by an FBI agent said.
Mail from the same mailbox tends to get clumped together in the same batch, so that can help investigators track where a particular item was mailed from to possibly identify the sender.
“We’ve used (the Mail Isolation Control and Tracking program) to sort the mail for years,” Donahoe said, “and when law enforcement asked us, ‘Hey, is there any way you can figure out where this came from?’ we were able to use that imaging.”