EGYPT AUTHORIZED TO BUY PL 480 WHEAT FLOUR-USDA Egypt has been authorized to purchase about 125,000 tonnes of U.S. wheat flour under an existing PL 480 agreement, the U.S. Agriculture Department said. It may buy the wheat flour, valued at 23.0 mln dlrs between April 8 and August 31, 1987 and ship it by September 30, the department said.