and i think you may have said this earlier, the worst place obviously for an explosion like this is to occur is in a very small confined area and the reason being that that primary blast becomes magnified in a smaller area. given that this was outside, obviously horrific as the scene describes but could have been much worse if it had been inside or a smaller area. also i think, don, even since you started the show, the numbers have gone up. 50 now to 59 people who are injured. that is not surprising. what typically happens in these types of explosion injuries is that there are -- there can be people out there and people who are mindful of this that they may have injuries. areas within their body may have been compressed by the explosive wave. they may not recognize the injury initially. they'll be going to the hospital over the next several hours, don. >> we spoke, sanjay, to karen