In California, law firms have filed a class action lawsuit against Costco and its Thai seafood supplier, arguing that the company has knowingly sold shrimp whose harvesting relies on rampant human trafficking and forced labor. Men who have escaped from boats in this supply chain have testified to beatings, torture, execution-style killings and grueling 20-hour shifts. The suit seeks to block Costco from selling these shrimp unless they are labeled as the produce of slavery.