you look at two things. they are simple and basic, strategy and structure. the strategy of all of these incorporates the forensics tale, the investigative trail, the handling of public tips and then going back out to the media and you can take every one of those categories and go back to other bombings and we can illustrate how that has been helpful. the structure is how you collect it all and bring it together. separate all the garbage from the nuggets you have to go through thera process. tucker: really quickly, there are an awful lot of bombs, none of them went off. what does that tell you, where these designed to go off? i have a rough time when i start speculating on it but i will try to say it like this. there s a lot of possibilities and people are talking about these kinds of theories. this may be they don t know what