A large puddle, a rare sight in the desert country of Egypt, reflects the Chephren pyramid as a rider and camel navigate through the normally dry but now swampy terrain. Heavy rains pelted the Egyptian capital of Cairo and the surrounding area Saturday, creating problems for travelers and disrupting normal life. The deluge chased tourists away from the ancient pyramids, which normally are packed with sightseers. The temperature in Cairo Saturday reached a high of 70, then slipped to 52 degrees for a low. Meanwhile, across the Atlantic to the west, much of the United States was gripped by record-breaking cold as an air mass from the North Pole sent temperatures plunging far below zero in dozens of states. See story on Page A10.