A microwave popcorn consumer who allegedly developed a lung injury from her exposure to diacetyl, the chemical responsible for the butter flavoring in the product, has sued popcorn manufacturers, retailers and flavoring companies in a Missouri state court, alleging product liability and negligence. Khoury v. ConAgra Foods Inc., No. 0816-CV31620 (Jackson County Circuit Court, Missouri, filed October 10, 2008). Represented by plaintiffs’ lawyer Kenneth McClain, who brought diacetyl-related litigation against employers on behalf of exposed workers with bronchiolitis obliterans and has also sued cigarette manufacturers on behalf of sick smokers, the plaintiff alleges that defendants failed to warn consumers that inhaling the “buttery aroma of Act II” microwave popcorn could cause respiratory damage.