The secrecy surrounding negotiations is one of many reasons opponents have always called FTAs antidemocratic. They're negotiated in secret by trade delegations from participating countries, and the public only knows what's in them after they're signed.
I was part of the PublicACTA meeting that drafted the Wellington Declaration against ACTA;
https://www.fsf.org/campaigns/acta/why-acta-declaration
The only reason we had a copy of the ACTA draft is that it had been leaked by a member of 1 of the delegations.
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