NASA's New Chief to Scrutinize Shuttle Launch Decision: "NASA's new administrator, Michael Griffin, promised Monday to leave 'absolutely no stone unturned' in deciding whether it's safe to launch Discovery next month—the first space shuttle flight since the Columbia disaster.

"Discovery is scheduled to blast off as early as May 15. That date is in question because of a critical engineering review and stack of paperwork that still need to be completed. The review is scheduled for Tuesday at Kennedy Space Center, and Griffin will be there with other NASA managers."