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issue (n.) — a point in question or a matter that is in dispute, as between contending parties in an action at law.
issue (n.) —a point, matter, or dispute, the decision of which is of special or public importance: the political issues.
issue (n.) — a point the decision of which determines a matter: The real issue in the strike was the right to bargain collectively.
"issue." The American Heritage® Dictionary of Idioms by Christine Ammer. Houghton Mifflin Company. 21 Oct. 2014. <Dictionary.com http://dictionary.reference.com/browse/issue>.