Al Gore: US democracy has been hacked

US democracy has been "hacked" by big business and needs to be reclaimed using the power of the internet to hold politicians to account, according to former US vice-president Al Gore.

US politics has become more divisive: "Certainly the level of partisanship and vitriol has been growing. And I think it is directly connected to the influence of big money – anonymous contributors, corporations pretending to be people and pursuing their business plans in the guise of politics and encouraging many politicians to say things and do things that would not have been seen in the best interests of the public in years past."