The NSA’s giant Utah data center will probably hold a bunch of spam

The National Security Agency's data-collection activities are so resource-intensive, the agency can't complete its new server farms fast enough. But when it does, a significant share of what gets held on those servers could wind up being worthless spam.

We now know the NSA collects hundreds of thousands of address books and contact lists from e-mail services and instant messaging clients per day. Thanks to this information, the NSA is capable of building a map of a target's online relationships. Sometimes, however, that process goes awry -- such as when one Iranian e-mail address of interest got taken over by spammers. Such incidents have caused huge amounts of unimportant information to flow through the NSA's systems, according to a chart in a top secret NSA presentation. Every day from Sept. 11, 2011 to Sept. 24, 2011, the NSA collected somewhere between 2 GB and 117 GB of data concerning this Iranian address. The exact numbers aren't clear because details of the chart have been redacted.