There is a lot of crap on the internet (I do mean crap) about the threat "Black Wind of Death". Some sites like this one...
http://www.lampholderpub.com/ They think that the terrorists are after the Yellowstone Caldera (setting a strong bomb off to make it erupt).
But, I do believe that they plan to start massive fires out west. So many that we will not be able to contain them for quite some time. Setting the fires would be easy to do, IMHO.
Good Night!