Reviving a dead comment:
"Similar to other man made materials such as fiberglass, carbon nanotubes, commercial cellulose, and of course asbestos; what is good for industry is often not good for people's health and disposal and handling are often not big concerns for the people manufacturing and selling these materials. This may be a serious problem in the future when these materials end up in the environment, where there interactions with natural systems in unpredictable."
This is a valid concern, what is the system for censorship here?