In other news, the chemical giant DuPont continues to draw scrutiny over its use of a controversial chemical in the manufacture of materials used for food packaging. On Tuesday, the Environmental Protection Agency announced an independent scientific review had concluded the chemical, known as Zonyl, should be considered a “likely” carcinogen. Zonyl is used in the manufacture of hundreds of types of food containers and appliances. Studies have shown it can rub off of packaging and contaminate food with a potentially carcinogenic compound known as PFOA. In November, a former DuPont chemical engineer revealed the company had hidden studies showing that the human body absorbs the chemical at three times the permitted level.