The headline news is that the NSA has surreptitiously "burrowed its way into nearly all the security architecture" sold the by the world's largest computer networking companies, including everyone from U.S. mainstays Cisco and Juniper to Chinese giant Huawei. But underneath this bombshell of a story from Der Spiegel -- just the latest in a long series of revelations involving widespread surveillance by the U.S. intelligence agency -- you'll find a rather healthy piece for irony.