How committed is President Obama to stopping Iran?

Jeffrey Goldberg and Yossi Klein HaLevi talk about President Obama's (lack of) commitment to stop Iran.

Here is an interesting (to me, at least) exchange (originally published
in The New York Jewish Week)  I had with my friend and sparring partner
Yossi Klein Halevi, of the Shalom Hartman Institute, on the subject of
President Obama's Iran policy. Yossi is one of those Israelis who is, to