http://www.va.gov/OCA/testimony/hgrc/24ja02JF.asp

here is one chemical to suspect for today's soldiers' ill health and PTSD type ailments

It is a particular pesticide that is in common use, and probably also in gun cleaners, jet fuel, explosion fumes

http://www.valdezlink.com/gwv/doyouhave.htm

http://www.valdezlink.com/gwv/replyforvets.htm

It is BUTYL, most of the time as 2-butoxyethanol
Dear Mrs. Hursh:

This is in response to your inquiry dated November 28, 2008.

We thank you for committing your time and energy into helping our nations veterans.

We have forwarded your information to your local VA Medical Center (VAMC) for consideration.

Thank you for contacting us.  If you have questions or need additional help with the information in our reply, please respond to this message or see our other contact information below.

Sincerely yours,

E. J. Kruse
National IRIS Response Center Manager
JG

How to Contact VA:

On line:
www.va.gov

By phone:
1-800-827-1000
1-800-829-4833 (TDD hearing impaired)

By letter:
U.S. Department of Veterans Affairs
2925 DeBarr Road
Anchorage, AK 99508-2989

https://iris.va.gov/Scripts/iris.cfg/php.exe/enduser/myq_idp.php?p_sid=RcO73ukj&p_created=1227886869&p_iid=270490&p_faqid=&