On Saturday’s (9/1) Melissa Harris-Perry show, the host made an animated defense of poor people, arguing that being poor was riskier than being wealthy. It’s not surprising that her comments got a strong response from viewers, and it’s not surprising they were almost uniformly positive in their comments on Twitter. What is surprising, however, is that 24 hours later the tone of the comments on Twitter had changed from positive to negative. What happened? Were these real comments by people reacting to the video? Or was Melissa the victim of an orchestrated “attack of the clones” — a large number of identical tweets that sought to change the public’s perception of events?