I haven't yet watched this event, which took place yesterday at Brookings, but I hear it was extremely moving. Brookings described it as follows:
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Headlines around the world over the last two weeks have warned of the impending "humanitarian catastrophe" in places like Aleppo should Assad regime forces continue their march unimpeded.
The Brookings Institution hosted a debate on how Congress should vote on the Iran nuclear deal. Senator John McCain (R-AZ) and Brookings senior fellow Leon Wieseltier (arguing no) faced off against Brookings senior fellows Suzanne Maloney and Bruce Riedel (arguing yes). Major Garrett of CBS News moderate d the debate, while Bruce Jones of Brookings provided opening remarks.