"The Goldstein brief described itself as 'the rare true "amicus" brief,' because its only purpose was 'to provide the Court with factual information that may be useful in guiding its decision.' According to the brief, it's very rare for CBAs to include clear, express language on the issue of vested retiree health benefits. However, the brief said that 6 percent of CBAs provide that retirees will receive health benefits 'for life,' while 22 percent link retirees' eligibility for health benefits to their pension status." [M&G Polymers USA, LLC v. Tackett, No. 13-1010 (on appeal from 6th Cir., cert. granted May 5, 2014)]