http://abcnews.go.com/GMA/Weekend/story?id=7889332&page=1

“For some, the idea of time travel is about fantasy. For others it’s science. But for Ronald Mallett, it was love — a son’s love for his father.

“You might even call it his lifelong mission.

“‘I thought if I could build a time machine to save my father’s life and see him again,’ said Mallett, whose father died when he was just 10.”

(June 21 2009, via Phantoms & Monsters)