The local EPA office sidelined the regional EPA office. Dr. Cate Jenkins, a whistle-blower EPA scientist, said that on September 12, 2001, a regional EPA office offered to dispatch 30 to 40 electron microscopes to the WTC pit to test bulk dust samples for the presence of asbestos fibers. Instead, the local office chose the less effective polarized light microscopy testing method. Dr. Jenkins alleged that the local office refused, and said, "We don't want you fucking cowboys here. The best thing they could do is reassign you to Alaska."