Connections

I was thinking today about James Burke's admirable television series Connections, where seemingly unconnected historical events were shown to have contributed to a modern scientific discovery.As a fond hommage to that series, I'd like to trace some connections myself— though I'm not going to do science history, because that's not really my strong point.  So here we are in the field of popular entertainment.First, the question: what do the executions of Julius and Ethel Rosenberg have to do...