One of the hardest things I do as FBI Director is call the chiefs and sheriffs in departments around the nation when officers have been killed in the line of duty. I call to express my sorrow and offer the FBI's help. Officers like Wenjian Liu and Rafael Ramos, two of NYPD's finest who were gunned down by a madman who thought his ambush would avenge the deaths of Michael Brown and Eric Garner. I make far too many calls. And, there are far too many names of fallen officers on the National Law Enforcement Officers Memorial and far too many names etched there each year.

Hard Truths: Law Enforcement (2015)