well, no, they did come back. but if they had been unable to come back, nixon already had a speech ready:
http://en.wikipedia.org/wiki/In_Event_of_Moon_Disaster
In the case of such an event, the two astronauts would have been given a cut-off of communications from mission control so that they could die in peace or commit suicide (take off helmets?)
http://en.wikipedia.org/wiki/In_Event_of_Moon_Disaster
In the case of such an event, the two astronauts would have been given a cut-off of communications from mission control so that they could die in peace or commit suicide (take off helmets?)