In the future, the cyber threat will equal or even eclipse the terrorist threat.

And from the moment that we realized it was a terrorist attack, there isn't an agent or a support person in the FBI that wasn't committed to bringing to justice those who were responsible for this.

No one has ever been able to convince me that optimism is not preferable to pessimism.

In the last 10 years, in narcotics task forces, in a number of violent crime task forces, we've worked very closely together with state and local law enforcement.

The 19 hijackers that came over here to commit the attack on Sept. 11, there were those that were at the bottom of the line. There were those who were the principal conspirators. There were those who were the pilot. Everybody has a role.

We had to address information technology in the ways we had not before and give the agents the tools that they need to do their job more efficiently and more expeditiously.

There are only two types of companies: those that have been hacked, and those that will be. Even that is merging into one category: those that have been hacked and will be again.