we'll tell but that, plus ambassador bolton on the growing threat from iran and north korea, coming up on "happening now." bill: all right, jon we'll see you at the top of the hour here, thank you, jon scott there in new york. an instant outpouring of support, the runners and the spectators, and the medics on hand springing into action moments after the first bomb went off. in a moment the solidarity for boston spilling way beyond that first response. >> as just a team we really try to work together and hold our home so we can take care of the people coming in. >> the red cross was there giving us blankets and gatorade and power bars. what was even better is that some of the houses opened up to the runners.