Most employers are reluctant to talk about unions and haven’t done it.

They should switch gears, however, and start encouraging supervisors to discuss unions to prevent their workforces from becoming unionized, as long as supervisors are trained on what they should and should not say, said Robert Brody, an attorney with Brody and Associates in New York and Westport, Conn., in a Nov. 8, 2012, firm webcast.