The origins of the gun lobby in the US. Plus we speak to Prof Robert Spitzer about the power of the National Rifle Association. Also, the mysterious American who killed two men in Pakistan and triggered a diplomatic crisis, the historic trial of the Nazi war criminal Adolf Eichmann in 1961, the battle to reclaim a Native American sacred lake, and the first space shuttle mission.

Photo: National Rifle Association Holds Its Annual Conference In Dallas, Texas. DALLAS, TX - MAY 05 2018. Credit: Justin Sullivan/Getty Images