I didn't know about the tunnel problems. I think it was the R line el train that I used to take when I lived in Astoria-Long Island City, Queens long ago, but they change the letters on the trains. Are they re-routing subways affected by the tunnel closures, or have they been shut down and replaced by buses? What I was really wondering about was how all those old electrical cables and circuits that went under salt water got saved from total destruction, and why they are not blowing out constantly now. Salt water is generally not considered helpful for electrical wiring, and the subways are all electric, and mostly very old. Wait till the next Super Sandy, or if one of the old and poorly maintained bridges or traffic tunnels or water tunnels or the whole subway system has to shut down. Sea level NYC is very vulnerable...but then so is the whole country, completely dependent on a tenuous and antiquated and poorly maintained power grid, complex and vulnerable drinking water delivery systems, long distance food delivery, tens of millions of hostile bipeds, etc.