Graham Allison, Director of the Belfer Center for Science and International Affairs, argues in The Boston Globe that contrary to certain statements, the Iran nuclear agreement actually does not constrain American or Israeli abilities to launch military options against Iran's nuclear facilities if needed in the future. He argues that the intelligence gained from monitoring the Iranian program will help targeting Iranian nuclear sites, and as a result the possibility for a military strike on Iran after the deal would be more likely to be successful than a military strike now.
Allison, Graham. “Iran Deal Keeps Our Military Options Open.” August 11, 2015
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