I don't want to downplay anything that happened here, but if you said a train of dihydrogen monoxide derailed and the vapors were spreading through the community, some number of people would come forward claiming to be sick. Statistically, someone is going to wake up with a cold on the day of the derailment. And the brain is a very powerful drug, if you scare someone with a chemical spill, they can show symptoms regardless of whether or not some chemical is acting on their body.

This is a risky comment to make, because it sounds like I am supporting NS's cleanup plan, and I'm not. I'm just saying that people saying they're sick doesn't mean the plan was executed incorrectly.