In a significant legal move, McDonald's is suing top meat packers, including Tyson Foods and Cargill, accusing them of colluding to inflate beef prices through a price-fixing conspiracy. The fast-food giant alleges that these major beef suppliers have manipulated the market, leading to increased costs, which could ultimately impact consumers. McDonald's lawsuit targets the 'Big Four' meatpackers and claims that their actions have severely disrupted the supply chain. This explosive antitrust suit highlights ongoing tensions in the meat industry as market dynamics and pricing strategies continue to come under scrutiny.