I'm a little late ... but ditto what Ed/Yekkimo said.
And ... did you know that folks in the military have a higher incidence of Parkinson's disease? That exposure to jet fuel increases the chance of PD? That the Department of Defense (DOD) has a program called the Neurotoxin Exposure Treatment Research Program (NETRP) whose primary purpose is to help determine the factors that contribute to the cause of Parkinson's in the military? The results of that DOD study will obviously benefit folks in civilian life as well.
For more info on the NETRP go to: http://www.momrp.org/publications/NETRP.pdf
lizzy4451