New revelations that the United States Post Office takes pictures of mail has some concerned they could be snooping on its customers.
The concerns come after the Postmaster General revealed his facilities take pictures of every piece of mail processed in the country.
Patrick Donahoe told the Associated Press the photos are used primarily for the sorting process, but they have occasionally been given to police.
"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."
Most recently, law enforcement officers saw the photos when ricin-laced letters were sent to President Obama and New York City Mayor Michael Bloomberg.
Donahoe said there's no central database of the images and that they're destroyed after a month.