The National Labor Relations Board filed an formal complaint yesterday against the retail behemoth Walmart, alleging that the company violated the rights of nearly 70 workers rallying over workplace conditions in 14 states.

The Los Angeles Times reports the complaint, the largest ever against Walmart, refers to charges made in November 2012 during the Black Friday actions by associates speaking out for respect on the job and for Walmart to publicly commit to provide regular hours and a living wage of $25,000 a year. The complaint alleges Walmart illegally fired and disciplined nearly 70 workers in 34 stores.

“Walmart thinks it can scare us with attacks to keep us from having a real conversation about the poverty wages we’re paid,” says Barbara Collins, a fired Walmart worker from Placerville, Calif., who is one of the workers named in the complaint. “But too much is at stake—the strength of our economy and the security of our families—to stay silent about why Walmart needs to improve jobs. Now the federal government is confirming what we already know: We have the right to speak out, and Walmart fired me and my co-workers illegally. With a new CEO taking over in a few weeks, we hope that Walmart will take a new direction in listening to associates and the country in the growing calls to improve jobs.”

Making Change at Walmart reported in a press release:

If Walmart is found liable, workers could be awarded back pay, reinstatement and the reversal of disciplinary actions through the decision; and Walmart could be required to inform and educate all employees of their legally protected rights. While historic, the complaint alone is not enough to stop Walmart from violating the law. Since the start of the year, Walmart has continued to retaliate against workers who speak out for better jobs.

In other news, the Internet group Anonymous leaked a set of Walmart PowerPoints for managers that included ways to discourage workers from joining a union and how to identify "early warning signs."