WEST ORANGE, New Jersey -- The park is green and quiet. Pathways curve around lawns bordered by rosebushes, daisies and boxwood. Dogwoods shade the grass. A nice place, you think, for a Sunday picnic or an afternoon's stroll. And the view is spectacular, well worth the hour-long drive from New York City. From Lookout Point atop Eagle Rock Reservation, you can see New York City 25 kilometres away, the spiky skyline stretching across the horizon. On a clear day, you can make out the Empire State Building. You can see why George Washington set up an observation post here to monitor...