Bill Ackman on Valeant Part 3

Bill Ackman was on CNBC talking about Valeant. This is the third part of the video. In this part they discuss whether or not Pershing's move into Allergan is fair. Bill makes the analogy that the activist investor brings things to the company that allow them to benefit - his example is that they would not have bought Canadian Pacific if they had not known they were going to make Hunter Harrison the CEO. So looks like activists play by special rules.