Chemical exposure can heighten and quicken other illnesses and make them more acute.

What we know from World War I is that some of our troops had acute symptoms of exposure to chemicals, had bad health and died because of chemical exposure in World War I.

But Gulf War Syndrome is not one cause, not one illness. It is many causes, many illnesses.

There's another issue here - and I have some limits as to what I can say - but there's some real question as to the viability of the chemical masks, the protective gear used by our soldiers.

Union Pacific's exposure to the chemical industry is the highest of all the rails, so it had the most to lose from Hurricane Rita,

We didn't chop off his head [during the Gulf War] and he's around, ... He's developing weapons of mass destruction, chemical and biological. We know that within three to five years he'll have nuclear weapons.