CAPE CANAVERAL, Fla. (Reuters) - While foam falling from the space shuttle's fuel tank has garnered the lion's share o f NASA's attention, the space agency's chief said on Friday it was far from being the only risk facing Discovery, which is set for liftoff from Florida on Saturday.
"I worry that we spend so much time worrying about foam that we won't worry about other things that could get us. We try to address them all," NASA administrator Michael Griffin said at a prelaunch news conference in Florida.