[Diddle E. Squat]

Yes, but by now they should have been able to clear at least a single-track by using diesels to move those dead trains to sidings or a second mainline track. I used to be a freight conductor working out of Secaucus and Newark, so got the opportunity to learn a good bit about the rail infrastructure in the metro. However perhaps many of these stranded passengers are Amtrak riders, and Amtrak would have to borrow diesels from NJ Transit, the freight railroads, or bring them in from Philly and DC. Amtrak resources are stretched so thin that service interruptions are magnified for them.

[CedarDave]

...Secaucus and Newark...

And nowadays you're out in the boonies of the west Texas Panhandle, right? ;>)