Corey Friedman, Columnist

If courts uphold the National Labor Relations Board's broad interpretation of "protected concerted activity," social and political messages that have nothing to do with working conditions could begin flooding America's offices, factories, shops and restaurants — for better or worse.

Labor Board: Take Your Politics to Work, by Corey Friedman The National Labor Relations Board wants to open the door to workplace activism, but winning its case against Whole Foods would tear that metaphorical door off its proverbial hinges. Regulators accuse the upscale supermarket chain of violating federal labor law when it forbade employees from wearing...