Test Run? Let no stone go unturned. Remember the "wonderful" kid who duplicated 9-11 by flying into the side of the Bank??
CNN showing Cessna on ground in Maryland.
Years ago the rough motorcycle gang (I think it was the Hell's Angels group) bought a lot of land and farm houses in Lancaster Co. and set up headquarters. Then later it became a main thruway for drug running. Lancaster is a beautiful, peaceful, rolling countryside. Lots of area to cover. It is most famous, of course, for the Amish and Mennonites and a big tourist mecca. But there is definately a strong undercurrent of crime. I would not be surprised if there are some "cells" there of terrorists or people with an agenda against our government.