An International Atomic Energy Agency (IAEA) inspector disconnects the connections between the twin cascades for 20 percent uranium production at nuclear power plant of Natanz, some 300 kilometres south of Tehran on Jan. 20, 2014.
AFP/Getty Images
July 16, 2015 11:37 AM EDT

The key to this deal, indeed the key to any arms control deal, is in the inspection and verification protocol. The most important question Congress will ask will be whether the inspectors can visit any site, talk to anybody, and review any document. Vigilance is the only thing that will ensure this deal is a success.

More Must-Read Stories From TIME

Contact us at

Read More From TIME
You May Also Like