The podcast from "Targeted: Beirut" is a detailed historical account of the 1983 bombing of the U.S. Marine barracks in Beirut, Lebanon. It covers the political and military context surrounding the event, including the Israeli invasion of Lebanon, the deployment of U.S. Marines as peacekeepers, and the escalation of violence against them. The book examines the events leading up to the bombing, the bombing itself, and its aftermath, including the investigation, the political fallout, and the enduring impact on the families of the victims. The authors rely heavily on primary sources, such as letters, diaries, and interviews with survivors and witnesses, to provide a personal and intimate perspective on the tragedy.