Wendy Sherman actually said...

The U.S. Government is dedicated to the return of Robert Levinson, and dual U.S. citizens Saeed Abedini, Amir Hekmati.

I certainly hope that we can use this as a way to do as you say, which is to improve collective efforts to address the underlying problem of...

We hope people do not go to Tehran. That is our preference.

the implementation of the Joint Plan marked the first time in a decade that Iran agreed to specific actions.