I'm pretty damn sure it's Bin Laden, no country would have anything to gain from attacking America, it would not gain them support in any way and it would probably result in their destruction if it was discovered, only fanatics like Laden would do something like this.
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Worshipper of Tiax.
Wielder of the ancient Lawyer spells.
Member of the HADB clan.
Ally of the Fluffy Queen and the Dreaded Red Fluffy