> And how much did she know about them? Possibly quite a bit. Astronauts aboard the Apollo 13 had to make various repairs to different subsystems, so I would n

> And how much did she know about them? Possibly quite a bit. Astronauts aboard the Apollo 13 had to make various repairs to different subsystems, so I would not be surprised if later Astronauts received fairly detailed information about how the entire system worked as part of their training, 'just in case'. At which point, you really don't want to have to worry about which pieces of information are safe and which are classified, or who is allowed to talk to who about what. Much easier and safer to just ensure you can give away as much info as possible to everyone involved.