President Barack Obama converted the commemoration of five Dallas police officers killed by a cop-hating African-American into an extended speech in support of the radical Black Lives Matter movement. “If we are to sustain the unity we need to get through these difficulties, if we are to honor these five outstanding officers who we have lost, then we will need to act on the truths that we know … America, we know that bias remains,” he said at the Dallas event, without criticizing or demanding anything of his supporters living in violent, undereducated, poor African-American communities. Throughout his speech, Obama...