Terror In Philadelphia?

A fifty-year old super heavy steel Amtrak rail passenger car was blown to bits in a huge explosion and rail disaster, and the brothers in Phili can’t figure out what caused the mess.   White House excuses?  Sorry - no speed control.  Sorry- forgot to interview the driver - oops…he doesn’t remember anything.  Sorry - no cab camera.  Sorry - no Black Box info.  Sorry, sorry, sorry. 

My answer?  Sorry - it was another in a deliberately executed plan of terror attacks scheduled for cities across the United States.  One per week and ongoing.  So be it.