Katie Couric's Notebook: 9/11 Mastermind

Our criminal justice system is based on the concept that criminal defendants are presumed innocent until proven guilty...that they have the right to a fair trial.

That sounds good on paper, but what if the accused is Khalid Sheikh Mohammed?

Attorney General Eric Holder's decision to try the admitted 9/11 mastermind - and four alleged co-conspirators in a civilian courtroom in New York City is controversial at the very least.

Some Republicans, including former Mayor Rudy Giuliani, say the Obama administration is giving terrorists too many rights and a platform for their radical ideology.

But 9/11 widow Kristen Breitweiser supports the decision, saying New Yorkers and families like hers - want to see these men publicly brought to justice - to finally have closure.

And so just blocks from the scene of the crime, justice will be served - a right nearly three-thousand Americans lost on 9/11.

That's a page from my notebook.

I'm Katie Couric, CBS News.