Barack Obama's speech touches on just about every controversial Constitutional issue in the news, but it's also peppered with reminders that he's not the same as George W. Bush.

As Senator McCain once said, torture "serves as a great propaganda tool for those who recruit people to fight against us." And even under President Bush, there was recognition among members of his Administration - including a Secretary of State, other senior officials, and many in the military and intelligence community - that those who argued for these tactics were on the wrong side of the debate, and the wrong side of history. We must leave these methods where they belong - in the past. They are not who we are. They are not America.

And:

[T]he problem of what to do with Guantanamo detainees was not caused by my decision to close the facility; the problem exists because of the decision to open Guantanamo in the first place.

For just two examples.