The provided sources explore the connection between the foster care system and child sex trafficking. The first two sources are YouTube video transcripts that allege that high-profile parties hosted by rapper P Diddy involved the exploitation of underage girls, who often came from foster care. The third source is a document that uses statistics and testimonies to demonstrate how the foster care system makes vulnerable children susceptible to trafficking. The document also details how traffickers operate, emphasizing the prevalence of physical and sexual abuse in their own backgrounds, which mirrors the abuse many of the trafficked children experienced.