Sen. Arlen Specter (D-PA) has posted the witness list for next Monday afternoon's hearing on The Health Effects of Cell Phone Use. John Bucher, the associate director of the National Toxicology Program (NTP), will be first to testify. He will be followed by a panel of four: Devra Davis of the University of Pittsburgh; Linda Erdreich of Exponent, a consulting firm; Dariusz Leszczynski of Finland's radiation protection authority (STUK); and Israeli epidemiologist Siegal Sadetzki, a member of the Interphone study group.