[pezdispenser]

I only saw it as breaking on CNN for a few minutes, outside shots of the school and that was it. I hope it gets covered somewhere soon. can anybody scan LA newssites for this?

[Velveeta]

Found it.
Looks like all is well, just baking soda:

http://www.signonsandiego.com/news/state/20050504-1350-ca-schoolevacuation.html