Why cut a deal when you don't trust 'em?

Dunno.  We don't trust the Iranians.  We know they want the bomb, badly.  They have spent a lot of money and time getting as far as they have.  The bomb would make the Iranian regime safe against regime change.  Even the boldest American future leadership would shrink from invading Iran if the Iranians threatened to nuke Jerusalem.  Real people (the kind with brains) have to figure that the Iranians will keep driving for a bomb no matter what kind of deal they sign with Obama.
   So why is Obama so set on a deal?  Especially a bad deal.  Even if the deal holds together for the next two years, it will ruin Obama's historical reputation for ever, if the Iranians produce a nuke right after Obama leaves the presidency.  Obama ought to know this, although sometimes you have to wonder about him. 
   The only way to keep the Iranians from the bomb is to remove all those centrifuges, along with all the uranium in the country.  Anything less is foolishness.  We ought to keep the sanctions on, ratchet them up tighter, until the Iranians turn over the centrifuges.  And we ought to destabilize their regime thru propaganda, aiding internal dissidents, assassination, and other dirty tricks.