Around year four of my career, something clicked for me. I realized that my job -- teaching mathematics to a room full of teenagers -- isn't actually about me. It isn't about my wonderful lesson plans or my overall pass rate for end-of-course tests.

As an officer of the law, this detective took an oath which he not only violated but soiled the very intention behind having school resource officers in the first place.

Deputy Ben Fields has been accused of using excessive force before.

What reportedly happened in that Spring Valley classroom is a prime example of the consequences of having a routine police presence in schools.

The South Carolina school resource officer who hurled a student to the ground and dragged her across her classroom on Monday has been sued twice before.