Marijuana is now legal in about half of the states, but still maintains its illegal status at the federal level. What does this mean for an employer who wants to, or has to, administer drug tests for its employees? We tackle that question on our podcast, On The Merits, with Sean Mack, a partner at the New Jersey firm Pashman Stein and the co-chair of its cannabis and hemp law practice. Mack says testing employees for marijuana, or firing an employee who tests positive, is now so fraught with employment law issues that it may no longer be worth the hassle.