Can a tweet be an unfair labor practice? On November 10, 2021, the Third Circuit Court of Appeals entertained oral arguments to determine just that. The tweet at issue: “[F]irst one of you tries to unionize I swear I’ll send you back to the salt mine.” According to the National Labor Relations Board (“NLRB”), this tweet, penned by the publisher in charge of an online magazine, violated sections 7 and 8 of the National Labor Relations Act (“NRLA”).