"And, you know, let's take the example of Guantanamo," Obama said in the interview. "What we know is that, in previous terrorist attacks--for example, the first attack against the World Trade Center--we were able to arrest those responsible, put them on trial."
The Obama antiterror strategy is to wait until terrorists kill American civilians, then arrest them and put them on trial. Of course, when we tried that in the 1990s, the eventual result was another attack on the World Trade Center. This one was far more successful, destroying the complex and multiplying the death toll nearly 500-fold.
Oh, and the men who carried out the attack were never arrested and put on trial, because it was a suicide attack. Another failure of the Bush administration!