Did you know there’s a secret daily flight from the United States to Cuba? Or, that in 1966, the U.S. government smashed a bacteria-laden light bulb inside the New York subway system? Thomas Eaton’s Book of Secrets reveals hundreds of clandestine, covert, surreptitious, furtive, hush-hush, and taboo pop-cultural and historical curiosities, from government cover-ups to…