The Potential Hidden Cost of 9/11

It is official: the people who lived and breathed in Lower Manhattan after 9/11 have been subjected to severe environmental danger, and the number of them who may be reasonable expected to die as a result exceeds the immediate death toll of 9/11.

The US government study provides the latest evidence of a systematic cover-up of the health toll from pollution after the 9/11 disaster, which doctors fear will cause more deaths than the attacks themselves.
...
The official report - sent to Congress last week by the US Government Accountability Office - says that between 250,000 and 400,000 people in lower Manhattan were exposed to the pollution on 11 September 2001. But it shows that the government has yet to make a comprehensive effort to study the effects on their health.

In a way, this is reminiscent of the "Gulf War Syndrome". While medical and military professionals argue over whether or not the veterans of that war exhibit a set of conditions consistent enough to be called a syndrome, 10,000 of those veterans have died since the Gulf War. Given their average age and the fact that of those 10,000 few suffered injuries while in the theater of operations, that figure is exceedingly high and can in no way be attributed to normal causes of death.