The only way to address terrorism is to deal with the issues that create terrorism, to resolve them where possible, and where that's not possible to ensure that there is an alternative to violence.

We worked to develop our own operations to advance U.S. counterterrorism objectives by penetrating terrorist safe havens and collecting intelligence that would inform policy and enable our own operations.

We have to be mindful that there is the certainty that terrorists will attempt to launch multiple attacks against their enemy, which is us and our allies.

I was an intelligence officer, not a policy-maker.

Cyber will be part of any future conflict - whether it's a nation state or terrorism.

No matter how many plots we uncover and disrupt, no matter how many terrorist organizations we degrade or destroy, another individual or group will rise to take their place.

The United States government does not negotiate with terrorists.