The Secret Side of the Iran Nuclear Deal

Important details of the nuclear agreement President Barack Obama says would bring unprecedented transparency to Iran's nuclear program will themselves be shrouded from the U.S. and Iranian publics, according to nuclear experts.

Officially, negotiators in Vienna have not made any decisions on what parts of the agreement would be released openly and what elements will be briefed to Congress but not publicly disclosed. Last week, a senior U.S. official briefing reporters said: "We expect that a text of the political understanding and the annexes will be public. Whether there will be any attachments or other documents that will be classified is not yet decided."