NASA officials now believe that the Space Shuttle Columbia shuttle was shedding heat-protection tiles as it flew over the United States Saturday morning.
The original content of this program is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License. Please attribute legal copies of this work to democracynow.org. Some of the work(s) that this program incorporates, however, may be separately licensed. For further information or additional permissions, contact us.