I spotted this (602) at BOS about 9:30 on Halloween- http://www.flickr.com/photos/newmundane/10680399145 I didn't think much about the loco but the grey box in a gon struck me. I did not go over and ask what it was.
No fights, just filling you in as best as I could. There is so much mechanical stuff that goes in to this crap I dont expect anyone who just watches them whiz by to know all about it. I been doing mechanical for 3+ years now and I do also try to keep up on the operating rules if I can that the crews must follow when stuff goes wrong so I can better understand what they did and why.
You know, knowledge has no value unless its shared with others. I believe in this whole-heartedly and I also believe education is the most powerful tool any human can come in contact with.