Explore the historical significance of the D.B. Cooper case, emphasizing its place in American criminal lore and why it remains unsolved. Discuss how modern forensic advancements are reshaping cold case investigations and leading to new breakthroughs. Compare the case with other famous unsolved mysteries to highlight common investigative challenges and successes. Reflect on the role of media and public influence in keeping the case alive, and consider ethical implications. Finally, examine the lasting cultural impact of D.B. Cooper in popular media and public imagination.