[jjulius]

To clarify, they didn't contain a "high amount" of asbestos, but there also wasn't "no" asbestos:

>Much of the thousands of tons of debris resulting from the collapse of the Twin Towers was pulverized concrete, which is known to cause silicosis upon inhalation. The remainder consisted of more than 2,500 contaminants, more specifically: 50% non-fibrous material and construction debris; 40% glass and other fibers; 9.2% cellulose; and 0.8% of the extremely toxic carcinogen asbestos, as well as detectable amounts of lead and mercury.

https://en.wikipedia.org/wiki/Health_effects_arising_from_th...

[culopatin]

0.8% of that mass is still a lot. Imagine having the pile of both towers and grabbing 1/100 of it.