BLUFFDALE, Utah (AP) -- The nation's new billion-dollar epicenter for fighting global cyberthreats sits just south of Salt Lake City, tucked away on a National Guard base at the foot of snow-capped mountains. The long, squat buildings span 1.5 million square feet, and are filled with super-powered computers designed to store massive amounts of information gathered secretly from phone calls and emails.
Two small, weathered signs in the sagebrush greet interlopers to this place with a stark warning: "Military reservation. No trespassing." But there is no visible marker bearing the facility's name and operator: The Utah Data Center, brought to you courtesy of the National Security Agency.
When it opens this fall, the facility will be the NSA's largest data storage center in the U.S. Just don't ask Utah officials, and certainly not the residents of tiny Bluffdale, just north of the new center, to tell you exactly what will go on inside. They either don't know, or aren't saying. And the NSA is famously tight-lipped.
"We know it's a spy center. But who are they spying on?" said Connie Robbins, an upholstery shop owner who lives in Bluffdale, a community of 8,000 some 25 miles south of Salt Lake City that is known for its rodeo and annual Old West Days.
The dearth of information has perpetuated a mystery that has spawned dozens of theories and a spoof website that even includes a phony code name for the facility: "Bumblehive," a play on Utah's nickname of the "Beehive State."
Last week's revelation that the NSA is collecting millions of U.S. phone records along with digital communications stored by nine major Internet providers illustrates how aggressively personal information is being congregated and analyzed -- and shines a brighter light on what will be going on in secret at the Utah facility, scheduled to open in October.
NSA officials say the center will play a key role in the nation's effort to protect national security networks, and allow U.S. authorities to monitor for potential cyberthreats. In an email, agency spokeswoman Vanee Vines said that "many unfounded allegations have been made about the planned activities" of the center.
"NSA would like to confirm, on the record, that the Utah Data Center is a state-of-the-art data facility designed to support the U.S. intelligence community's efforts to further strengthen and protect the nation. Its operations will be lawfully conducted in accordance with U.S. laws and policies," Vines wrote.
She provided no additional details, however.
Richard "Dickie" George, who retired from the NSA in 2011 after 40 years, said the facility isn't nearly as interesting or mysterious as some think. He calls it little more than a giant storeroom. Inundated with increasing volumes of secretly taped phone calls, intercepted emails and poached records of online purchases, the NSA needed a mega-warehouse to put it all, he said.
"It's just a big file cabinet out in the Western area," said George, once a senior technical leader at the agency. "There is no spying going on there."
NSA agents elsewhere will comb through the data stored in Utah as the agency attempts to understand how terrorist groups operate and who plays what roles, George said. Emails, articles, websites and videos on the Internet may hold clues about such activities, he said.
James Bamford, the author of several books on the NSA who last year wrote about the Utah center in Wired magazine, asserts that the facility will serve as the central depository for everything the NSA intercepts, functioning as the agency's "cloud." Analysts at NSA headquarters at Fort Meade, Md., and other agency sites will be able to access the information by way of secure, fiber-optic cables, he said.
The mammoth center, which cost some $1.7 billion, will allow the agency to store more and, perhaps more importantly, keep information for much longer. Bamford theorizes the facility will be able to hold a so-called yottabyte of information, the largest measurement computer scientists have. A yottabyte is equal to 500 quintillion pages of text, said Bamford, who believes the Utah center will store those phone records NSA gathered from Verizon Communications.
"Every day you pick up a telephone and call your grandmother or call your sons and daughters and mothers and fathers and whoever, records of those calls will be all kept in there -- and may be kept in there forever. Who knows?" Bamford said.
In response, NSA spokeswoman Vines stressed that the agency is not "unlawfully listening in on, or reading emails of, U.S. citizens."