E. coli in water.

From CNN:

The standing water in New Orleans, left behind after Hurricane Katrina blasted through the region more than a week ago, is contaminated by E. coli bacteria, a highly placed official in the New Orleans mayor's office told CNN on Tuesday.

"It's absolutely unhealthy to be anywhere near the water," said the official, who declined to be identified.

I guess New Orleans didn't dodge lots of bullets. Oh, Brownie, what will you say about this one?! (Do you think the Arabian Show Horse Association ever had to deal with E. Coli contamination?)