The NSA Is Building the Country's Biggest Spy Center (Watch What You Say) | Threat Level | Wired.com:
For the first time, a former NSA official has gone on the record to describe the program, codenamed Stellar Wind, in detail. William Binney was a senior NSA crypto-mathematician largely responsible for automating the agency’s worldwide eavesdropping network. A tall man with strands of black hair across the front of his scalp and dark, determined eyes behind thick-rimmed glasses, the 68-year-old spent nearly four decades breaking codes and finding new ways to channel billions of private phone calls and email messages from around the world into the NSA’s bulging databases. As chief and one of the two cofounders of the agency’s Signals Intelligence Automation Research Center, Binney and his team designed much of the infrastructure that’s still likely used to intercept international and foreign communications.
He explains that the agency could have installed its tapping gear at the nation’s cable landing stations—the more than two dozen sites on the periphery of the US where fiber-optic cables come ashore. If it had taken that route, the NSA would have been able to limit its eavesdropping to just international communications, which at the time was all that was allowed under US law. Instead it chose to put the wiretapping rooms at key junction points throughout the country—large, windowless buildings known as switches—thus gaining access to not just international communications but also to most of the domestic traffic flowing through the US. The network of intercept stations goes far beyond the single room in an AT&T building in San Francisco exposed by a whistle-blower in 2006. “I think there’s 10 to 20 of them,” Binney says. “That’s not just San Francisco; they have them in the middle of the country and also on the East Coast.”