(August 3, 2018, 1:20 PM EDT) -- WASHINGTON, D.C. — A National Labor Relations Board majority on Aug. 1 issued a notice and invitation to file briefs on whether it should adhere to, modify or overrule Purple Communications, Inc., 361 NLRB 1050 (2014), a 2014 decision in which it held that employees with access to their employer’s email system have a presumptive right to use that system on nonwork time for protected communications (Caesars Entertainment Corporation v. International Union of Painters and Allied Trades, District Council 15, Local 159, AFL-CIO, No. 28-CA-060841, NLRB)....