>> that could be a legitimate source of query to find out what did the white house know, when did they find out, why did it take so long for him to acknowledge himself personal wlly, the deaths of these four heroes. i agree we need to find answers and i absolutely agree that congress, in its role, having oversight over the administration, should be demanding answers. i just think high rhetoric in the immediate days after wards isn't necessarily going to get you there. but i do think that the way that president trump and his administration has handled this entire situation is really incompetent at best and at worst perhaps they are trying to cover something up. but we're only going to find that out by a thorough investigation into what happened. >> david, might they have known something?