After decades of being demonised by the US, Iran may be emerging from international isolation thanks to the nuclear deal.
Is the thaw a sign of a new rapprochement between two foes?  Or are they destined to remain the best of enemies?

"Iran is much more dangerous right now than ISIS because Iran is closer to a nuclear weapon," James Woolsey says. 

In this week's Arena, former CIA director James Woolsey, who has compared Iran to Nazi Germany debates Trita Parsi, founder and president of the National Iranian American Council (NIAC). 

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Source: Al Jazeera