I am attempting to check whether I could correctly implement d3Vienno's code (http://www.youtube.com/watch?v=lJgEx_yb4u0) from his d3.js Map Tutorial with geoJSON for NYC. However, my Gist is failing to properly display the map, and no errors are being thrown, as you can see here: http://bl.ocks.org/jcahan/0a25ae5f5018fc6d28c7.
I would very much appreciate any recommendations as to why this might not be working. I suppose it could be due to a lack of styling, but I am not sure.