Yes. He needs to let things unfold. Just like Q, he'll communicate when he needs to.
I tend to agree with this. Many doctors on the train, minimal injuries to R's - also many references to Scalise, as if hinting what the train accident might have been, both on Twitter and by Rand on Outnumbered. I think it is possible this was a thwarted FF.
Peter Doocy, who is at the scene, just stated on Fox that SWAT has arrived in the area where the buses are; he speculated it was to keep all media and observers safe. Wouldn't that normally be the role of regular officers not SWAT?