On a near daily basis, a cop or former cop's face makes the local newspaper with whitewashed headlines like Former deputy now charged with exploitation. Little attention is given to these stories despite the grim nature of them. For example, the aforementioned headline is from a small Minnesota town and involves a deputy who was arrested on multiple felony charges including child molestation, sexual misconduct with a child, and child exploitation. No one else picked up the story and it was swept under the rug.
The disgusting crimes that lead to these headlines happen often and blow the myth of the 'bad apple' theory completely out of the water. Just this month, two NYPD cops crimes were so bad they actually made national headlines when they were arrested for allegedly handcuffing an underage teen and brutally raping her in their van. As TFTP reported, officers who were allegedly acting on behalf of the rapist cops entered the rape victims hospital room and threatened her if she came forward with her accusations.
Comment: Some very wise words by the professor. Nowadays it's rare to see educators who teach their students how to think instead of reciting rote and opinion without really understand what they are saying. The speech in its entirety can be found here and is well worth reading.