The Trans-Pacific Partnership (TPP) free trade agreement is being negotiated in Singapore this week between Australia, New Zealand, the US, Peru, Chile, Mexico, Canada, Singapore, Brunei, Malaysia, Vietnam and Japan. The countries have a combined gross domestic product (GDP) of US$28,136bn on 2012 figures, which represents almost 40% of the world's GDP. There have been many contentious issues around the TPP: critics are particularly concerned about the secrecy around the agreement given it has the capacity to change many local laws and regulations. The majority of public criticism has centred on arguments relating to intellectual property and the cost of medicines, though many have concerns about environmental issues including climate change, investment, e-commerce and labour laws. The US has been rigid in its demands for stronger intellectual property protection to champion the rights of its global giants such as IT companies and its film and music industries. The US position on [the] investor-state dispute settlement provision ... grants foreign companies the right to sue [a] government under international law. All countries accepted there needed to be agreement on privacy obligations with regard to information-sharing, apart from the US, which reserved its position on privacy. The US position has left people wondering whether the TPP will undermine privacy, particularly in the wake of the NSA revelations from the Snowden documents. There appear to be deep divisions on environment and climate change, with the US and Australia opposing any extension of the text on climate matters.