Columbia University Technical Report 173 concluded that some corrections which the authors neglected in their calculations were substantial enough to render their conclusion questionable. 

Rustad and Ruby acknowledged experimental errors in a post-deadline presentation at the 1958 winter meeting of the American Physical Society. No abstract was recorded but it was later described by Ruby as "mea culpa."

Attention to the problematic He⁶ recoil experiment came to a head in September 1957 at the Rehovoth Conference on Nuclear Structure, the first major nuclear conference convened in Israel. Wu, T.D. Lee, E. Konopinski, Harry Lipkin and Hans Frauenfelder were among those to weigh in.

Ruby leaves pure physics in first career stop at an industrial R&D lab

The first report of the Rustad-Ruby experiment giving top-line results was published by The Physical Review six weeks after it was received

The atomic age dawned with its awful complexities. Stan learned of it while encamped in the Philippines. Wu had a major hand in it

The war years will be a transformative time for all Americans. Stan interrupted his studies at Columbia. Wu came to Columbia to do secret research