Want to reform the police? Hire more women

(CNN)It was a moment that captured national attention and revealed an important lesson about police reform. A Fort Lauderdale, Florida, policeman, facing off against a line of yelling demonstrators, sticks his finger in the face of a protester. He then turns toward a kneeling woman, her hands raised in protest. The officer suddenly lunges and shoves her. Then, a a policewoman appears. She swats her male colleague back toward a line of patrol cars, waving her arm and appearing to upbraid him for what he did. "Thank you!" a protester shouts at Officer Krystle Smith, who won praise for her actions on social media and from police leaders around the country. Fort Lauderdale police have identified...