At the most recent MUFON Symposium, I talked several people about creating multiple chains of evidence for our UFO cases. I based this on the study done in France in 1803 that proved rocks could fall from the sky... rocks we now call meteorites. The French Academy of Sciences had rejected the idea until a French researcher, Jean-Baptiste Biot, put together a study, with multiple chains of evidence, that proved in at least one instance, rocks had fallen from the sky. (As we say in ufology, it only takes one).
Which leads to another point. I had been discussing UFOs with a skeptic (Hey! I talk to them... most are reasonable people) and I mentioned, as one series of good sightings, the Levelland events of November 2, 1957. There were many reports of the close approach of the UFO interacting with the environment, meaning that it stalled car engines, dimmed headlights, and filled radios with static.
My skeptical friend said something like, "Oh yeah. The Condon Committee investigated that but even with the most powerful magnets available could not duplicate the alleged effects."