My wife rides Amtrak quite often, and we know this route.
The train is quite frequently late.
Exceeding the recommended speed in order to make up time is the most plausible.
America needs to understand that our troops are not 'disposable'. Each represents a family; Fathers, Mothers, Sons, Daughters, Cousins, Uncles, Aunts... Our Citizens are our most valuable treasure; we waste far too many.
