The main feature of such a tactic, is that once Iran takes any measure that threatens a neighbor or enemy, Obama and Kerry can say;
"That wasn't what we agreed to. They agreed to nonaggression and peaceful use of their nuclear production."
And who can say they are lying again?
Whomever believes the first word from either of these first class fools is a bigger first class fool, and soon to be an extinct first class fool.
The Citizens of The United States are lucky the bombs and missiles haven't started flying into their neighborhoods already.
And when they do, The U.S. will be blamed by the entire civilized world for facilitating the atrocities.