Nuclear Safety returned to the international agenda in March 2011 after an earthquake generated a tsunami that crippled the Fukushima Daiichi nuclear power plant in Japan. Coinciding with the 25th anniversary of the world’s worst nuclear power accident at Chornobyl in Ukraine, Japan’s disaster highlighted the key issues which the Chornobyl disaster exposed. World Information Transfer’s 20th Conference gathered scientific experts who reviewed our current knowledge of nuclear energy and identified those areas where scientific information remains lacking. Our speakers discussed potential new technologies needed to increase nuclear safety from cradle to grave. In each of its 20 Conferences, WIT has underscored the significance of distinguishing fact from fiction. Nuclear energy generally and Chornobyl specifically trigger emotions, and in an emotional climate the absence of verified facts tends to give way to unfounded claims. Since 1986, the science of Chornobyl has been challenged by emotional reactions to the accident, and we note that fears of nuclear energy again shape the reaction to Japan’s nuclear accident as well as to nuclear power as an energy source. In the following pages government leaders and scientific experts address the range of nuclear energy issues currently facing our global community. The conference’s commemorative session on April 26, “History Revisited”, offers statements by governments and the Ukrainian NGO Community. The scientific session on April 27, Nuclear Energy: From Cradle to Grave,” presents the scientific findings.