Found: 2 Hubble-Class Space Telescopes.

"First rule in government spending: why build one when you can have two at twice the price?" 

 - The Movie: Contact

Or three for that matter.

It seems that the National Reconnaissance Organization has just stumbled across a couple Hubble-class Space Telescopes they had laying around. While these were built to look downward instead of toward the heavens, it seems they will work damn well pointing upward.  NASA has plans to use them to seek out dark matter and save the U.S. $250 million over the cost of building a new telescope.

See the great article at the New York Times.