Chances are your employees are happier with the 14-year-old FMLA than you are. A new U.S. Labor Department report says employees would like to expand the law to create longer leaves and paid leaves. But employers argue that the law’s vague wording (and employees’ ability to play games with FMLA) create legal and productivity nightmares. Here are the main problems employers have with the FMLA, according to Labor’s report …