A farmer holds up an egg next to one of his hens at a chicken farm in Schleiden, Germany in this file photo. German authorities are investigating possible large-scale fraud by organic egg producers amid increased concern over food industry practices following Europe's horse meat scandal. The northern state of Lower Saxony, a major agricultural hub, has launched probes of some 150 farms suspected of wrongly selling eggs produced by hens kept in overcrowded conditions under the organic label. Reuters/Ina Fassbender/File (