http://fieldnotes.msnbc.msn.com/archive/2009/02/12/1792108.aspxBy Al Henkel, NBC News Producer LONE GROVE, Okla. – It's the insulation in the trees that directs you where to go when you cover a tornado. More than the twisted siding, or trees down, or flashing emergency lights after dark – tornados always, anden-USCommunityServer 2.0 (Build: 60608.1)