[A]n Associated Press investigation has found shrimp peeled by modern-day slaves is reaching the U.S., Europe and Asia...U.S. customs records show the shrimp made its way into the supply chains of major U.S. food stores and retailers such as Wal-Mart, Kroger, Whole Foods, Dollar General and Petco, along with restaurants such as Red Lobster and Olive Garden. It also entered the supply chains of some of America's best-known seafood brands and pet foods, including Chicken of the Sea and Fancy Feast, which are sold in grocery stores from Safeway and Schnucks to Piggly Wiggly and Albertsons...European and Asian import and export records are confidential, but the Thai companies receiving shrimp tracked by the AP all say they ship to Europe and Asia as well. The businesses that responded condemned the practices that lead to these conditions. Many said they were launching investigations when told their supply chains were linked to people held against their will in sheds like the Gig factory, which sat behind a gate off a busy street, between railroad tracks and a river....After AP brought its findings to dozens of global retailers, Thai Union announced it will bring all shrimp-processing in-house by the end of the year and provide jobs to workers whose factories close as a result...Susan Coppedge, the U.S. State Department's new anti-trafficking ambassador, said problems persist because brokers, boat captains and seafood firms aren't held accountable and victims have no recourse.