Given that the NSA is busy tapping the phones and email conversations of the leaders with which the USA is "negotiating" this TPPA, it's hard to believe that this isn't just a one-sided deal.
How can other nations "negotiate" when the USA knows exactly what their bottom lines are (given that they've likely exchanged such information with their fellow politicians within their own country by phone or email)?
What's more -- why does this all need to be done in secret -- hidden away from the eyes and ears of those who these politicians are elected to REPRESENT and SERVE?
This is a huge con-job on the peoples of the non-US nations involved.
I strongly suspect there will be a great deal of "post-political career" employment on offer for those foreign politicians who agree to the US-dictated terms of the TPPA.