we begin this evening with a report from dallas, from manny fernandez of the "new york times." >> go back to this morning with the chief, and near the top of that press conference, he gave one of the best summaries of what it's like to be a policeman in america today, and what he said, i've heard from other police officers, and essentially the chief was saying we put too much on our officers, we expect our officers to solve too much of society's problems. schools fail, give it to the cops. there's a loose dog problem in dallas, give it to the cops. he went through this whole litany and he said it's too much, he said we can't do it all. and i've heard that from -- worded differently from a lot of different people in law enforcement. and i think that that's part of it. i think it's part of it, sort of thinking about what is it we want our officers to be doing? what is their role, you know, and sort of just acknowledging, like, what we ask of them when we put them on the front lines. >> rose: and we continue with comment and perspective from charles blow, a columnist for the "new york t