Mealey's (December 4, 2018, 3:49 PM EST) -- WASHINGTON, D.C. — The U.S. Supreme Court justices heard arguments Dec. 4 on whether they should institute a rule that in order to provide the required “substantial evidence” of job availability at Social Security disability proceedings, vocational experts must back their opinions with the data they used (Michael J. Biestek v. Nancy A. Berryhill, No. 17-1184, U.S. Sup.)....