By SAMY MAGDY, Associated Press CAIRO (AP) — Egyptian archaeologists have unearthed more than two dozen ancient coffins in a vast necropolis south of Cairo, an official said Monday. The sarcophagi have remained unopened since they were buried more than 2,500 years ago near the famed Step Pyramid of Djoser in Saqqara, said Neveine el-Arif, a spokeswomen for the Ministry of Tourism and Antiquities. She