Asbestos, the insulating fiber, is a known carcinogen. The crysotile variant is less so but requires special handling to prevent inhalation of the carcinogenic fibers. Canada exports the fiber to third world countries like India from mines in Québec. The trade has been denounced because the "special handling to prevent inhalation" is rarely, if ever, achieved in the third world. See, for example:
Why then does the Harper government continue to support the international trade in crysotile fiber when it is well known that lives in third world countries are being lost to lung cancer and other respiratory illnesses as a result of exposure to the fibers in unsafe working conditions? It is like a man profiting from selling hypodermic needles to junkies with the argument, "well, I don't know what they use them for". Out of sight, out of mind: it's a crappy morality..
Less we be accused of Left wing bias - US?? - it should be noted that Canadian unions don't come out smellin' like roses either. As a group they have been internally paralyzed by Québec unions in the industry who have placed local job security over 3rd world health and lives. Short term logic of course: we save our jobs in Québec and to hell with Asian workers. Did no one tell them of "Divide and conquer!"