A short video of unpatched SP #9721 passing thru Houston on October 12, 2010. I wish I could have gotten better footage, but as rare as these things are, you take what you can get: http://www.youtube.com/watch?v=EDAlh9QZ9Tc
Two others. Wonder why these GP60s aren't patched? Probably because the numbers do not conflict? Photos in San Antonio 27 Aug 2010.