Elon Musk told NASA astronauts' kids, 'we've done everything we can to make sure your dads come back ok' ahead of the SpaceX launch

· Elon Musk appeared to choke up while discussing his responsibility for the lives of the two NASA astronauts that SpaceX is set to launch into space on Wednesday.
· Musk said he told the astronauts' families: "We've done everything we can to make sure your dads come back ok."
· Though the Falcon 9 rocket has undergone...