Definition of postscript | Bee Dictionary of English

Then he read a postscript.
Instead, this group says, look to us, who are living the postscript, and don't let it happen to you.
At the end of the movie, a postscript challenges practicing doctors to try that technique.

Apathy, sugar and parents: Cosby’s notable message
The Issue: Bill Cosby’s recommendations for today’s parents, including curbing children’s sugar intake. *** In his opinion piece, Bill Cosby shines a valuable spotlight on the responsibility he says Americans should take when it comes to our health choices (“A Plague Called Apathy,” PostScript, June 9). Unfortunately, he...
June 12, 2013 - New York Post
Truly super
It is very easy to rate Superman as a shallow character, as a persona very hard to empathize with or as just a Boy Scout and nothing else (“In Praise of Being Super,” Dan Greenfield, PostScript, June 2). It’s very uncommon to see a piece in the media that...
June 9, 2013 - New York Post
RTS for Saturday, June 8, 2013
GRAD POSTSCRIPT: Tracy Keppel of Bradford called Friday morning to say how surprised she was to see her late father’s name in ’Round the Square.
June 8, 2013 - The Bradford Era

Robert Ford in Toronto Star
According to Voznesensky, "all Moscow is furious with Plisetskaya for having inspired Esposito to such feats of valour in the final period," Ford wrote. "Whether true or not it is an entertaining postscript to the series."
Steve Waugh in Daily Telegraph
They were not quite sure what to do or how to appeal and it was an obvious postscript to the scrutiny of the side's behaviour in the Sydney Test,Waugh said.
Abraham Foxman in Sydney Morning Herald
Let him have the film he wants to have,Mr Foxman said. "But, given the film he has made, I would like to see him do a postscript. Let him say, 'I did this film because I believe I was inspired by the Holy Ghost. I believe that Jesus...