I thought it was, however I was not explicit in saying why I chose to identify their ethnicity.
Here is what I left out. Only one on the crew who was the supervisor spoke much english. I suspect they did not even know what silicosis was. Plus because they were contractors not employees of TALC of NC, TALC of NC is probably not even required to tell them what safety measures to take. Plus the effects may not show up for years. I did mention it to the supervisor (the fan), and that everyone the dust reached was at some risk. On parts of the house they could set the saw back another 5 feet and that would help in dispersing it faster, but on my patio they were in an area where only one side was open to a breeze and the dust lingered longer. I seem to remember ther e was a dustless cutting device and I asked the salesman if the crews used is and he said yes. If that was true then maybe they provide crews that perhaps employees with it.