NASA Seeks Answers in Shuttle Disaster By MARCIA DUNN and PAM EASTON, Associated Press Writers

Remnants of the space shuttle Columbia remained strewn across east Texas and Louisiana Sunday, as authorities probed possible causes for the tragedy that pierced a crystal blue sky and stung deeper into an already shaken sense of security.

--If they were launching tomorrow I would go. The astronaughts on board knew the risks. Everyone knew this was not an airline flight. We cannot betray their memory by drawing back from our future in space.