Saving a treasured trove, ever so slowlyAncient manuscripts from Mt. Sinai move into the digital age with the help of a Bedouin camel driver's son. By Suzanne Muchnic, Times Staff Writer SINAI, Egypt — On a refreshingly cool morning, before the sun drenches every exposed grain of sand in this vast desert, Hemeid Sobhy sets out on foot from the Bedouin village where he lives with his parents and sisters. Neatly dressed in jeans, sport shirt and sturdy sandals, he walks 40 minutes to the Holy Monastery of St. Catherine. He passes through a narrow door in the monastery's thick...