RICHLAND, Wash. – An investigative branch of the U.S. Department of Energy told a group of citizen advisors [today] Tuesday that it's launching an inspection into beryllium [BER-ill-ee-um] exposure at the Hanford Nuclear Reservation. It's a metal that can be inhaled into people's lungs. One of the people in the audience in Richland was Tom Peterson. He got sick in 1993 from beryllium. Now, Peterson wears an oxygen tank where ever he goes. He says he's skeptical of the federal investigation but hopes it could lead to help for his friends.