" ..., Iran is still the biggest sponsor of Islamic terrorism world wide."
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Simply factually wrong.
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It isn't Iran that is exporting Sharia.
It isn't Iran that is exporting Wahhabism.
It wasn't Iran that was the cradle of Al-Queda, or of IS/ISIL/Daesh.
It isn't Iran that prevented democratic government from being established in Libya.
It wasn't Iran that was behind the counter-revolution in Egypt.
It wasn't Iran that crushed popular democratic protest in Bahrain.
It isn't Iran that is bombing a popular uprising for self-determiation in Yemen.
It isn't Iran that is funding Madrassas and intolerance, esp. in Pakistan.
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Saudi Arabia is, by far, the biggest funder and exporter of extremist religious instability.
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(True, white American evangelical Christians are probably better funded, but they tend to do most of their worst damage at home: see Election of Trump, Donald; election of Bush, George W.
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By contrast, Saudi Arabia is a big exporter of trouble.)