undocumented workers to work at their stores. The workers themselves were employed by agencies Walmart contracted with for cleaning services. Walmart blamed the contractors, but federal investigators point to wiretapped conversations showing that executives knew some workers did not have the correct documentation. The October 2003 raid was not the first time Walmart was found using unauthorized workers. Earlier raids in 1998 and 2001 resulted in the arrests of 100 workers without documentation located at Walmart stores around the country. In November 2005, 125 alleged undocumented workers were arrested while working on construction of a new Walmart distribution center in eastern Pennsylvania. According to Walmart, the workers were employees of Walmart's construction subcontractor. Allegations of wrongful termination On January 13, 2011, four employees at a Walmart in Layton, Utah were confronted by a shoplifter who pulled out a handgun and took one of the employees hostage in an attempt to leave a small, closed office. The other three employees disarmed and subdued the shoplifter, and all four held onto the man until police arrived. A week later, the four employees were fired for violating a company policy requiring employees to "disengage" and "withdraw" from any situation involving a weapon. The four fired employees, together with two other Walmart employees who had been fired after subduing violent customers, sued Walmart in the United States federal court in June 2011. After the Utah Supreme Court ruled (in response to a request from a federal judge) that Utah law prohibited the firing of workers for defending themselves from injury or death, Walmart and the workers settled the case on undisclosed terms. On July 9, 2013, an employee at a Walmart in Kemptville, Ontario, confronted a customer who had left his dog locked in his truck with the windows rolled up. She called the police when the customer refused to solve the problem. She was fired later the same day, reportedly on the grounds of "being rude to a customer", after rejecting instructions from her manager that such incidents should be reported to the store management rather than directly to the police. The National Labor Relations Board (NLRB) has long had the goal of protecting workers, whether unionized or not, who engage in concerted activity by speaking with each other regarding conditions, wages, and/or benefits. The NLRB has recently stated that this also applies to social media. The key point is whether or not