A box of chicken nuggets, left, sits beside a portion of french fries in this arranged photograph at a McDonald's restaurant, operated by McDonald's Holdings Co. Japan Ltd., in Tokyo, Japan, on Wednesday, Jan.7, 2015. McDonald's Corp.'s Japan business and Cargill Inc. are investigating complaints objects were found in chicken nuggets made by a Cargill factory in Thailand, the restaurant chainĂ¢s second food safety crisis in six months.  Photographer: Kiyoshi Ota/Bloomberg via Getty Images