A broad base of knowledge is critically important to our ability to investigate terrorism.

I've been the longest-serving police commissioner in the history of the department, but it's time in my life to move on. I'm ready for new adventures, new challenges.

I never think of the word legacy. It doesn't mean anything. You do the right thing, in my judgment, and things will work out. That's what drives me. I'm not looking for legacy or history books or whatever. I know what we've done here has saved a significant number of lives. The burden is not on me. It's on the politicians who made the decisions to limit what we're doing. They're the ones who are going to pay a price, in my judgment, if crime significantly increases.

When I had the job of police commissioner, 20 years ago, I was more sensitive, more cognizant of complaints and concerned about public opinion. I've learned to do what I think is the right thing. That lessens the impact of criticism. You get used to a pressurized environment and expect it every day.

Virtually everything I learned about leadership traits and core values, I learned in the Marine Corps. To this day, I keep a list of the traits in a little black book, 14 of them, including integrity, justice, bearing, enthusiasm, endurance - all indicators you aspire to when you're a leader.

I think one of the biggest scams in law enforcement is the monitor.

Good news is not news. Bad news sells. Confrontation sells. And that's what the press is always looking for. I'm not bragging, but I have the highest job-approval rating of any public official in the city. And I've had it consistently. The approval rating for the police department is 70 percent. This notion that stop-and-frisk has torn the community apart is false.