We explore the history of child protection and endangerment in the United States. Topics covered: the making of the AMBER Alert system; Amber Hagerman; CONELRAD and Cold War emergency broadcasting; child abduction; family abduction; child abuse and neglect; child protective services; the Adverse Childhood Experiences study; Mary Ellen Wilson, Etta Wheeler, the American Society for the Prevention of Cruelty to Animals, and the founding of the New York Society for the Prevention of Cruelty to Children; John Caffey, C. Henry Kempe, and the battered-child syndrome; mandatory reporting; missing-child statistics; the bogeyman; Plato's Phaedo and the mormolukeia; John Locke on education and child subjection; Goya's Que viene el Coco; Struwwelpeter; Etan Patz, Adam Walsh, and milk-carton missing children; 1980s stranger danger; moral panic; crime-control theater; child-abuse hotlines; family privacy; parental authority; children's autonomy. Selected sources and further reading: AMBER Alerts and missing children NCMEC, 2025 AMBER Alert Report: https://www.missingkids.org/content/dam/missingkids/pdfs/2025_Annual_AMBER_Alert_Report.pdf Griffin, Williams & Kadleck, "AMBER Alert Effectiveness Reexamined," Criminal Justice Policy Review 33 (2022): https://doi.org/10.1177/08874034211026366 Sedlak et al., National Estimates of Missing Children (OJJDP, 2002): https://ojp.gov/pdffiles1/ojjdp/196465.pdf Hammer, Finkelhor & Sedlak, Runaway/Thrownaway Children (OJJDP, 2002): https://ojp.gov/pdffiles1/ojjdp/196469.pdf Wolak, Finkelhor & Sedlak, Child Victims of Stereotypical Kidnappings Known to Law Enforcement in 2011 (OJJDP, 2016): https://ojjdp.ojp.gov/sites/g/files/xyckuh176/files/pubs/249249.pdf Amber: The Girl Behind the Alert (Peacock, 2023) Child maltreatment HHS, Child Maltreatment 2024: https://acf.gov/cb/report/child-maltreatment-2024 Kim et al., "Lifetime Prevalence of Investigating Child Maltreatment," AJPH 107 (2017): https://doi.org/10.2105/AJPH.2016.303545 CDC, "Adverse Childhood Experiences Among High School Students," YRBS 2023: https://www.cdc.gov/mmwr/volumes/73/su/su7304a5.htm Felitti et al., ACE Study, Am J Prev Med 14 (1998): https://doi.org/10.1016/S0749-3797(98)00017-8 Stoltenborgh et al., "Prevalence of Child Maltreatment across the Globe," Child Abuse Review 24 (2015): https://doi.org/10.1002/car.2353 Histories and studies Caffey, "Multiple Fractures…" (1946); Kempe et al., "The Battered-Child Syndrome" (1962) Shelman & Lazoritz, The Mary Ellen Wilson Child Abuse Case (2005); Watkins, "The Mary Ellen Myth" (1990) Gordon, Heroes of Their Own Lives (1988); Pleck, Domestic Tyranny (1987) Szymanski, "Child Abuse, Policy Communities, and Frame Contestation During the Progressive Era" (2019) Pollock, Forgotten Children (1983); deMause, ed., The History of Childhood (1974) Cohen, Folk Devils and Moral Panics (1972) Primary texts Plato, Phaedo 77d–e; Locke, Some Thoughts Concerning Education §138; Goya, Que viene el Coco (1799)