John Kerry: “There couldn't be a more fertile field for the use of public diplomacy to achieve national security ends than Iran.”

I mean, we try to help the world.

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.

In terms of global challenges and U.S. interests, yes.

Would not it make a lot more sense if we were avoiding that damage in the first place, or minimizing it?