When trade diplomats gather in Singapore next month for the latest round of secret negotiations in the wide-ranging Trans-Pacific Partnership Agreement, the issue of intellectual property will again generate heated debate on the sidelines.
Trade agreements usually deal with tariff reductions and market access rules.
But the TPPA, which the New Zealand Government claims could result in gains worth more than $3 billion for the country, is unusually broad in scope, including provisions that could also affect how consumers access internet content and companies innovate in the digital space.
Fuelling the controversy is a draft of the intellectual property chapter of the agreement that found its way on to the internet in 2011 and which has become "Exhibit No. 1" for a wide range of activist groups, politicians and academics worried New Zealand is signing up to a deal that will curb internet freedom and stunt the growth of its knowledge economy.
The IP text, which was verified as genuine but may have altered significantly since the leak, includes provisions to tighten protection of intellectual property, provisions that by default favour the US as the biggest net exporter of IP in the world.