. >> reporter: bill bratton has run three major police departments, los angeles, new york city and bostone symptom of a broken system and how to fix them. >> its leadership is sending signals that anything goes. and it will be those in the organization that are going to take advantage of that. >> a front line police officer, his or her most important current is the confidence of the public. >> john miller is here. will we see more of this? this is a trend that will continue because of brutality and civil rights violations? >> well, i mean, to state the obvious, 99% of police officers, of course, 18,000 law enforcement agencies in the country go to work and do a great job every day. i think when you see 17 of these going, you might see more of them. that's the department department's posture on this which is we're going to get into these things. on the other hand, police departments, police chiefs may look at this trend and say, i need to clean up inside before they get here. >>> no ordinary concert at carnegie hall last night. on stage, a duo who describes themselves as mozart meets monty