Look Inside the Windowless New York Skyscraper Linked to the NSA

The Intercept:

“They took me upstairs, and it was just racks and racks of electronics,” Greenberg recalled in a phone call Friday, adding that he toured the basement of the building and two or three other floors. “They told me, ‘We don’t use the whole building anymore so [we] serve private clients.’ I didn’t think at the time about whether anything secret was going on.”