You hear more about Lena Dunham than you expect, given the audience for “Girls”, right? (Read this article for more.) The same is true, or should be true, for the contract defense of illusoriness. After decades of disuse, it is popping up more and more often as a defense to the enforcement of arbitration clauses (like in New Mexico and the Fifth Circuit), and therefore qualifies as the “it girl” of arbitration law. Just last week, the Sixth Circuit issued a new decision, affirming...