All I know is summed up best by a "hic-farm-boy-sounding" caller on C-SPAN:
"You cant stop crazy people."
So, all you Engineers out there need to explain the type of world that needs to be created before we could stop achilles-heel type of terrorism pioneered and ground-tested by the following:
Buford Furrow. (opened fire on a day care)
Harris and Kliebold. (school massacre)
Larry Ashbrook. (church massacre)
No matter what you do to the airlines, the reservoirs, the nuclear power plants, etc -- in the end there is no defense against a suicidal terrorist with a gun of any sort charging into one of these 'sensative' sites and blasting away.
Not even guards help, as illustrated by the airport shooting.
(the LACK of any of the above happening should tell us something about the allegation of terrorist cells existing in the US -- they are either lazy, uncreative, ambivalent or simply non-existant)
First of all, meny people who read FR are convinced that lower-grade sobotage and thuggery, ranging from railroad track sabotage to maybe AA587 being bombed, and certainly including the shoe bomber and the LAX shooting, has been going on since 9/11.
Also, the most straightforward explanation of the likely cover-up and minimization - i.e. "No evidence he was motivated by terrorism." in the LAX shooting - is that our government wants to propagandize us that it has the terror thing under control, when, in fact, there are still dozens to hundreds of dangerous people running around, and Moslems in the U.S. generally support these scum.
How do we minimize the threat agianst soft targets in teh U.S.? Deport all illegal Moslems NOW. Review the visa and PR status of all other Moslems and deport all that have a whiff of radicalism on them. Poisoning all of NYC is not likely. Derailing passenger trains, on the other hand, is very likely to continue until we get serious about removing the threat from our midst.