Law360, New York (April 17, 2014, 5:45 PM EDT) -- Employers are often surprised to learn that policies that explicitly prohibit employees from discussing their salaries or bonuses are in violation of Section 7 of the National Labor Relations Act. After all, employers often have good reasons for implementing such policies. Open discussion of salaries and bonuses can often result in serious morale problems, and employees often fail to appreciate the legitimate reasons for salary differences. But the National Labor Relations Board has made it clear for some time that such policies interfere with an employee's right to engage in concerted activity. This applies to all employees, regardless of whether or not they are represented by a union....