What Should You Do If You Find a Piece of China's Crashed Space Station?

I buy this argument when it comes to radioactive materials but I never heard Tiangong-1 had a source for them on board. Everything organic (like fuel) should be made harmlessly by the reentry heat. This leaves us with inorganic compounds like asbestos which are dangerous, but still ubiquitous in most parts of the world. So I think this warning is a bit sensationalist.