Leó Szilárd
In the first case, the international community would be warned of the dangers and encouraged to develop an effective international control on such weapons. In the latter case, the United States would gain several years time to further develop their nuclear armament before other countries would start their own production. The Franck Report was signed by James Franck (Chairman), Donald J. Hughes, J. J. Nickson, Eugene Rabinowitch, Glenn T. Seaborg, J. C. Stearns, and Leó Szilárd.