Extinction thing

["Alex W. Hertzog" <ahertzog@ozarks.sgcl.lib.mo.us>]

A friend of mine, knowing about my interest in dinosaurs, told me about a 
radio program she heard which said that there is a theory going around 
now about the dinosaurs' extiction involving metorites and sulfer in the 
air, and that it's very very likely that this iswhat really happened. 
Something like a >90% chance. Anyone else heard this? Anyone know about 
this theory's credibilty?

Alex