Just a heads-up for those who live around Metro-North and LIRR tracks. Though wouldn't be surprised to hear a few calls go out about this anyway:
http://www.lohud.com/article/20100422/NEWS01/4220412/1018/NEWS02/Low-flying-helicopter-to-make-video-record-of-Metro-North-tracks
http://www.lohud.com/article/20100422/NEWS01/4220412/1018/NEWS02/Low-flying-helicopter-to-make-video-record-of-Metro-North-tracks