Original sentence: Chernobyl disaster.Human exposure at high enough levels can cause both short-term illness and death, and longer-term deaths by cancer and other diseases.Nuclear terrorism.Operating nuclear reactors contain large amounts of radioactive fission products which, if dispersed, could pose a direct radiation hazard, contaminate soil and vegetation, and be ingested by humans and animals.Some specific concerns relate to:.There are concerns that a combination of human and mechanical error at a nuclear facility could result significant harm to people and the environment:.Three Mile Island accident.Windscale fire.Yucca Mountain Proposed repository of nuclear wastes
Edited sentence: Yucca Mountain Repository of nuclear wastes