HELP! I Accidentally Duplicated a Discussion

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Does anyone know if there is a way to delete a duplicated discussion? I finished my first Corned Beef Hash Recipe discusion and while adding the tags, I took a break and my husband closed the window down. Without checking, assuming it didn't post, I re-typed it. Now, there are two discussion. Can it be deleted? If so can someone tell me how to do it? Any help will be greatly appreciated. Thanks.