While the tag reads "REZIST" in the traditional sense of breaking cannon in modern language (hence provoking the feeling of freedom from preconception), this window-down could be a possibility of things. It is either a roll call, where all members of the NSF Crew are written by one member in appreciation for their past work together, or more than one member worked on this piece at one time.
Most prominent on the web is the first to the left, PEAR, while Amen has by far the coolest name among others (Arek, Con, GoGo).
Now, a quick search turns up that NSF stands for either "Not Stictly Freights" or "Non Stop Flavor" (could also mean both...). Apparently these writers are from the west coast, as they are logged as having beef with a few crews out that way as well as being listed in several bloggues about west coast street art. However, there is also an article about the arrest of an NSF member in New York City (not to mention the interview linked above with PEAR demonstrates a presence in Philly), suggesting either larger ties or simply, that they originated out west and then moved apart while preserving allegiance (or even still, that there may be more than one crew using the acronym NSF).
This is my first time venturing down to the tracks, ever, and I had to climb up on one to manage getting this shot. I wanted to get closer but was a little skittish about getting caught on private property (which given the heavy machinery, is an obvious liability). In this particular circumstance, I happened to run into a few drifters (and their dog) looking for Philadelphia, and couldn't imagine living the kind of life they do (essentially embodying the message of this particular tag, in a way). We chatted briefly as they chased after the canine.
In the future I hope to get more into capturing pieces with more variance in shot framing to help add an artful flavor, but this should do for now.
Anyways, this piece begs to question: what or how do you " REZIST "?
For me, it is many things...