testing assuring that no unreported sites were developing nuclear warhead capability either.
Not sure what your problem is wrt to the unfreezing of Iranian funds that was part of the deal...it cost the U.S. nothing....AND, we could freeze funds again,,,the same 'Stick' that created the JCPOA in the first place, if Iran violates the decades long promises held in that deal.
Attached is a document that is highly credible which details how and why the JCPOA worked...now its your turn to produce a credible source that counters mine, and provides justification for Trump's attack...Good Luck, ELP!
Link: https://armscontrolcenter.org/the-real-facts-on-the-iran-nuclear-negotiations/