Things that go boom

NYT article had an article this morning pointing out renewed interest in dangers posed by meteors and the need to do some better sky surveys following the recent undetected meteor that exploded over Russia a couple days ago.

It probably also reminded us all of the Tanguska event in 1908 that occurred over a remote area of Siberia.  Apparently the Tanguska meteor (or maybe comet?) was only about an estimated 100 meters across (a little more than a full football field), and according to wikipedia "The Tunguska explosion knocked down an estimated 80 million trees over an area covering 2,150 square kilometres (830 sq mi) (i.e. circular area of 52km in diameter)."
 
Apparently NASA was recently awarded with 2 decommissioned high powered Defense department  telescopes - supposedly with capabilities greater than Hubble.  But while the telescopes are space ready, they'd need to be upgraded for space and then would need to be launched.  Could they perhaps /should they be put to use doing dangerous meteor hunting?