Dega704 sends this news from Wired:
Plenty of nightmare surveillance theories surround the million-square-foot NSA facility opened last year in Bluffdale, Utah. Any locals driving by the massive complex Friday morning saw something that may inspire new ones: A massive blimp hovering over the center, with the letters NSA printed on its side.
Activist groups including the Electronic Frontier Foundation and Greenpeace launched the 135-foot thermal airship early Friday morning to protest the agency's mass surveillance programs and to announce the launch of Stand Against Spying, a website that rates members of Congress on their support or opposition to NSA reform. The full message on the blimp reads 'NSA: Illegal Spying Below' along with an arrow pointing downward and the Stand Against Spying URL."