As I said to the wife several times during the last few months, “I need a goddamned time machine.”. We historian types get this feeling on occasion. After all, the sources that come down to us in this benighted present often obscure more than they reveal. The past is replete with mysteries; how satisfying would it be to venture back and be a fly on the wall? The moment time travel is invented, I suspect the Texas Book Depository and Dealey Plaza will be so packed with tourists that Oswald won’t be able to get off a single shot.