6 ms·> Only the outside of the mail is [scanned], as opening mail would require a warrant.by huhtenberg 13y ago> Only the outside of the mail is [scanned], as opening mail would require a warrant.uptown 13y agoOpening 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 13y agoMetadata is extremely useful.