An hour-long investigation of accidents at foundries owned by McWane, Inc.

This “FRONTLINE,” New York Times and Canadian Broadcasting Corporation collaborative investigation traces some of the 4,000 employee injuries at McWane plants since 1995, including several fatal accidents. The program builds the case against McWane through interviews with current and former employees, government officials and exhaustive document searches of company records and government reports Concluding that McWane is one of the most dangerous companies in America in terms of safety and environmental hazards, the program also questions the effectiveness of current government regulations and enforcement. This is investigative journalism of both the public and private sectors at its best.

Lowell Bergman, David Barstow, correspondents; Neil Docherty, David Rummel, producers; Michael Sullivan, executive producer, special projects; David Fanning, executive producer for “FRONTLINE;” for The New York Times, Lawrie Mifflin and Ann Derry, executive producers; William Abrams, president, NYT-TV; Michael Oreskes, executive in charge.

Original story: pbs.org/wgbh/pages/frontline/shows/workplace/