Citywatcher.com, a video surveillance company, has issued a work rule requiring its employees to have radio frequency identification chips embedded in their forearms, in order to monitor the employees' movements while they are working. The employees feel that such a rule is overly intrusive and would inhibit the employees' willingness to discuss working conditions among themselves. Does the new work rule violate Section 8(a)(1) of the NLRA? Would it make a difference if the employer adopted the rule because it was aware that the employees had been discussing joining a union? Explain