A little something for the kiddies, like trader4, who have their heads in
the sand, or elsewhere.....

EPA Won't Restrict Toxic Herbicide Atrazine, Despite Health Threat
White House documents obtained by NRDC reveal that industry influenced the
decision. The EPA has decided not to limit one of the nation's most widely
used weed-killers, a chemical that, according to several recent studies,
threatens human health and the environment. The October 2003 decision --
which the EPA was required to make under a court-approved consent decree
reached with NRDC in 2001 -- will allow Syngenta, the main manufacturer of
atrazine, and other companies to continue to sell the chemical in the United
States with no significant restrictions.

The rest:
http://www.nrdc.org/health/pesticides/natrazine.asp