I couldn't disagree more with you Hanbrugerbum regarding Morton and the Fair catch at the 10.
The rule of thumb for a return-man is that if the ball is at the 10 yard line or further out, then you catch the ball and if it's going to land inside the 10, thenlet it go. Think about it. With 30 seconds to go and already fumbled exchanges, do we really want to have to run plays from our 1? Taking a knee would cause a safety. Morton did the right thing in this situation.