OK, so how do you propose to deal with the problem of persons plotting and training for mass murder? Or would you just let it happen?
Well, I would deal with the problem. The war in Afghanistan is not dealing with the problem, so what you suggest is not dealing with the problem.
People in terror camps anyhow are bad mass murderers. Therefore you need more sophisticated skills, which e.g. the 9/11 terrorists learned, uhmm, in the United States of America. And plotting I can do here in my home.

How to deal with the problem?
Lots of things, most of which are actually done.

• securing critical vulnerabilities with sky marshalls, airplane courses, extra security personal in nuclear power plants, give the political responsibility for things like NORAD to people who are competent...
  
• police work, secret service work: This has controlable success. So while you look to Afghanistan, our police locks terrorists, with enough proofs to go to ordinary court and send the terrorists to prison, no Guantanamo, no military tribunals needed
  
• try to cut their financing
  
• try diplomatic pressure on countries which are known to harbour terrorists
  
• give carrots to countries, which are cooperating.
  
• try to cut their popular support, by stopping to behave like an asshole

Of course a lot of these are already done (except of the last, it seems Bush wants more terrorists, not less), but the war in Afghanistan is not helpful.

Der Amerikaner ist die Orchidee unter den Menschen
Volker Pispers