Officials said to be looking at whether producers have conspired to increase prices or have held back supplyThe justice department has reportedly opened an investigation into what is driving the sharp rise in egg prices, including whether top producers have conspired to increase them.Officials are also said to be looking at whether companies have held back supply. Their investigation is in its early stages, and may not lead to any formal action, according to the Wall Street Journal, which cited sources familiar with the matter. Continue reading...