 Based on the information in the text, why would Don choose to leave Superior?
Radio messages stated simply that Superior had seceded from Earth. A few minutes later he had relayed a message from Superior, formerly of Ohio, addressed to whom it might concern: It said that Superior had seceded from Earth. Don Cort had been dozing in what passed for the club car on the Buckeye Cannonball when the train braked to a stop. Don made his way up to the locomotive and found a bigger knot of people gathered in front of the cowcatcher.
 He had to deliver the handcuffed briefcase.
 He had to deliver the handcuffed briefcase.  He had a family to return to that would be expecting him at home.  He feared the future of Superior.  His wife would not appreciate him spending time with Alis.