For decades, Egyptians have dreamed of bringing back some of the glories of their ancient civilisation scattered across museums and private collections across the world.Now as Cairo gears up to open "the largest archaeological museum in the world" at the foot of the pyramids of Giza in November, Egypt's former antiquities minister Zahi Hawass told AFP that he will soon demand the return of three of its greatest lost treasures:- Rosetta Stone -