Have they released any of that ballistics evidence, showing how the shooters stalk their prey (which might help one to be more careful in a parking lot)?
Have they talked about any of the witness accounts from last night?
Have they proposed a theory about anything whatsoever?
No? I didn't think so.
As soon as the DC area is sealed off as best it can with todays technology and swat and military the terrorists will move on to another area.
If they just fessed up folks would be able to help our country further. (Just look at FRereper ideas and research and info. Fear is fear, random shots from a sick coward are there. Whether it is some bubba homegrown loon or a towel wearing terrorist,) so it cannot cause more panic.