<p>COPPERHILL, Tenn. (AP) -- Months before terrorists attacked America, two Middle Eastern men landed a small plane at an airstrip in the Appalachian foothills after getting a look at a nearby river and a huge chemical plant.</p>
<p>Danny Whitener, a 48-year-old junk car dealer who was alone tending his plane when the strangers arrived, is convinced one of the men was Mohamed Atta, whom authorities believe was the ringleader of the Sept. 11 suicide hijackings.</p>