The federal government evacuated some workers Tuesday at the Hanford Site, a former nuclear weapons production site in Washington state, after soil collapsed over a tunnel containing contaminated material.
원문출처 : http://www.cnn.com/2017/05/09/us/hanford-nuclear-site-tunnels-contamination/index.html
원문출처 : http://www.cnn.com/2017/05/09/us/hanford-nuclear-site-tunnels-contamination/index.html