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  ABC has a video taken right near ground zero of the first bomb explosion that you should see.  People start screaming and running but when that second explosion goes off, the level of screaming amps up about 50 times louder and there is absolute panic.  
 I heard NBC news says that so often in Afghanistan and Iraq, etc., one explosion often follows another for maximum effect.  And that is makes one think it is someone familiar with smaller explosive device uses in that two smaller ones can create so much panic today and then at future events.
 
				__________________  Jeanie and Tibbe  One must do the best one can. You may get some marks for a very imperfect answer: you will certainly get none for leaving the question alone. C. S. Lewis |