John Kerry: “Iran's leaders must comply with the international community's requirements that its nuclear program is strictly for…”

Depending on what it involves, shadow diplomacy has also saved us from a war.

We're spending billions--literally, actually, trillions.

the U.N. Finance Analysis suggests that it will cost trillions of dollars. Maybe $2.5 to $4.5 trillion a year between now and 2050.

We are competing, but everybody has their own approach, which is one of the exciting things here.