I think all data should be equally available to all political parties. Persuasion is what each party tries to do to gain undecided votes. Nothing is wrong with that, even if it is called manipulation. It is what every person tries to do to influence others "to buy a car for example". It is not a crime because no one is forced and they decide based on what they know and feel. That is still democracy. People are not sitting ducks for others to toy with their helpless brains. I do not buy this message of the documentary.