FILE - In this Nov. 13, 1979, file photo, while United Nuclear Corp. uses a combination of hand work and heavy machinery to clear up a uranium tailings spill along the Rio Puerco, signs warn residents in three languages to avoid the water in Church Rock, N.M. A bipartisan group of lawmakers is renewing the push to expand a federal compensation program for radiation exposure following uranium mining and nuclear testing carried out during the Cold War. Advocates have been trying for years to bring awareness to the lingering effects of nuclear fallout surrounding the Trinity Site in southern New Mexico and on the Navajo Nation, where more than 30 million tons of ore were extracted over decades to support U.S. nuclear activities. (AP Photo/SMH, File)