David Rubin : Countries seeking only a civilian program do not construct enrichment sites in secret , acknowledging them only after their discovery . Current Iran talks does n't reflect its past successes . Negotiators must learn lessons from North Korea talks , Rubin says . Essential ##ly make use of leverage over Iran , he says .
David Rubin : Current Iran talks does n't reflect its past successes . Negotiators must learn lessons from North Korea talks , Rubin says . Essential ##ly make use of leverage over Iran , he says .