U.S. Videos, for TV News, Come Under Scrutiny
Federal investigators scrutinize segments prepared for local television news programs in which Bush administration paid people to pose as journalists praising benefits of new Medicare law and its prescription drug benefit; segments were created by Home Front Communications production company for Health and Human Services Department; government also provided scripts for news anchors to use to introduce segments; General Accounting Office lawyers discovered materials while looking into use of federal money to pay for fliers and advertisements publicizing Medicare law; administration defends propriety and legality of materials, but some Democrats disagree; photos of TV segments featuring Pres Bush and Health and Human Services Sec Tommy G Thompson (M)

