Samples obtained from radioactive dump that burned in Nevada

LAS VEGAS — Authorities say samples have been obtained from a blast crater and fire-damaged storage drums at a closed radioactive waste dump that exploded and burned almost a month ago northwest of Las Vegas. Officials didn’t explain what the samples tell them. A statement from the Nye County sheriff said investigators returned last week to the site of the Oct. 18 fire. The statement says testing confirmed the material that burned was buried decades ago. Several 55-gallon drums that