[Excerpt] Ever since the establishment of environmental and workplace protections in the early 1970s, private employers have resisted further curbs on corporate conduct by threatening job destruction. The refrain has been that occupational health and safety standards wipe out existing jobs and make new ones impossible. In Fear at Work, Richard Kazis and Richard L. Grossman detail the use of this job blackmail to split trade unionists from environmentalists, making unnatural enemies of those who should be allies.