Lack of transparency threatens TTIP’s success

Supporters of a major free trade deal aimed at boosting trade in goods and services between the US and EU find themselves on the defensive following another big leak of secret documents.

For the past three years, negotiators have been working to put together the ambitious Transatlantic Trade & Investment Partnership — TTIP .

Its backers, ranging from US President Barack Obama to German Chancellor Angela Merkel, have argued that its passage would boost economies on either side of the Atlantic by around $100bn.