Uncle Sam is always watching, even if you’re a major brand like Pepsi or Walmart. The Federal Trade Commission, or what we will call FTC from here on, has filed a major lawsuit against Pepsi for colluding with Walmart to keep prices lower at Walmart stores than any other stores.

The Robinson-Patman Act was passed in 1936, but the federal government stopped enforcing it during the deregulation of the 1980s. The FTC resumed its enforcement in December when it sued Southern Glazer’s, the largest U.S. distributor of wine and spirits.

The U.S. Federal Trade Commission sued PepsiCo on Friday for offering preferential pricing to a large retailer, whom a source familiar with the matter confirmed was Walmart .

A lawsuit filed by the Federal Trade Commission alleges that food and beverage maker PepsiCo engaged in illegal price discrimination by giving unfair price advantages to one big-box retailer.

The US Federal Trade Commission (FTC) has launched legal action against PepsiCo, accusing the company of engaging in “illegal price discrimination” within soft drinks. According to the FTC’s allegations,