That is a significantly high number as it is six 'proved' cases. Some people wouldn't even know if they were exposed by other sources and even if they knew, would it be documented? Chances are we have all been exposed to asbestos and other carcinogenic chemicals both natural and man-made. The correlation was very weak to begin and it seems some of the people that did this study did willfully ignore details that make is suspect. I like to think all scientists are working on our behalf but there is a monetary motive to attain certain positive results in this case. We shouldn't automatically give them a pass.