It all started about two weeks ago near a Black Lives Matter rally in Poway when Emmanuel Cafferty, a San Diego Gas and Electric employee, encountered a stranger on the roadway. The stranger followed Cafferty and took a picture of him as his arm hung out the window of his company truck. The picture made the rounds on Twitter accompanied by a claim Cafferty was making a "white power" hand gesture made popular by white supremacists groups. According to the Anti-Defamation League, the gesture -- made by forming a circle with the thumb and index finger, and extending and separating...