Having worked in NYC often as a vendor to ConEd, I can tell you unequivocably, that there are many “mole people” living under the streets of NYC. The accounts made in Toth’s book are not only true, but actually not even detailed enough.
One only has to know the right ConEd service personnel who have to occasionally go underworld to disconnect haphazardly performed electrical connections (they are ordered to do this by their superiors who know all-too-well that there are communities down there). I have joined those utility workers on more than one of those forays and witnessed first hand scenes as described in Toth’s book. Yes, there are people in leadership roles acting as mayors. There are complete living quarters with cable TV, bedrooms, showers, etc. Though not nearly as nice as you would see up top, they are definitely there and, to those people, this is their existence.
Bringing video teams down there to document their world would be dangerous at best and could be deadly. They do not want to be “discovered”. They do not want to be bothered. There homesteading is tolerable to ConEd, the city political machine, and the transit police (who are all well aware of their existence). What little utility load they drain is a mere drop in the bucket to the waste of Times Square and the 8 million people top side.
The tunnels they live in are often known to, but not used by current transit means. There are some that do not show up on any current transit maps. Access to these tunnels is interesting in itself, because I accessed them directly via a set of double steel doors off of 42nd Street. You wouldn’t know those doors from any other business access, but once you walk through the doors, you enter a maze of stairs and ladders which take to you their world. This is where a majority of the heavy furniture and goods enter their world.
So, don’t fool yourself. these are generally peaceful solitary people with a multitude of reasons why they are living where they are and they do not want to be exposed. For this reason , I highly suggest that you do not invade their world since they are armed and, en masse, they will defend their domain, such as it is.
ETA: Link to column http://www.straightdope.com/columns/read/2488/are-there-really-mole-people-living-under-the-streets-of-new-york-city and an update to that column: http://www.straightdope.com/columns/read/2498/em-the-mole-people-em-revisited