A "disaster waiting to happen"? Industry officials worry about Crew Dragon availability.

NASA breathed a deep sigh of relief six years ago when SpaceX launched two astronauts, Doug Hurley and Bob Behnken, on a successful mission to the International Space Station. With the safe landing of Crew Dragon, the US space agency broke a nearly decade-long gap in its ability to put humans into orbit. Through its Commercial Crew program and multibillion-dollar contracts awarded in 2014, NASA had hoped to foster two providers of low-Earth orbit transportation, SpaceX and Boeing.