[joelrunyon]

Not sure if that would help since they're already logging all physical mail.

http://consumerist.com/2013/07/03/forget-the-nsas-hi-tech-sn...

[huhtenberg]

> Only the outside of the mail is [scanned], as opening mail would require a warrant.

[uptown]

Opening is entirely different from scanning the front and back of every item of mail. The linked article is about scanning the front and back of every mail item, which is done domestically.

[akadien]

Metadata is extremely useful.