Comment Re:Email is like sending a postcard (Score 1) 218
Except the USPS scans an image of every piece of mail that it processes, which is then stored in a database that law enforcement can access. So in effect, sending a postcard is very similar to an email, with regards to how the message is intercepted and stored by federal authorities.
My experience working for the USPS was that the images were kept for a very short time (a day or two max) and then deleted. It is possible that law enforcement would be able to get a copy, but they'd have to be quick. In addition, the Postal Inspection Service is pretty serious about postal employees not accessing the mail except as part of doing their jobs, but I don't know whether they give access to law enforcement.