Verkkowashington — a new batch of classified documents that appear to detail american national security secrets from ukraine to the middle east to. Verkkobehind locked drawers of file cabinets, in police departments all over california, sit documents no one is supposed to see. Verkkoas matthew connelly shows in his harrowing new book, “the declassification engine: What history reveals about america’s top secrets,” the. Verkkoat the columbia history lab, matthew connelly ’90cc uses data science to uncover files long hidden from public view — telling a new story of postwar america. Verkkoclassified files recovered from us president joe biden's former private office reportedly include some material marked top secret. Verkkothey reveal information — including classified information — to bend issues to their advantage either overtly, using the “bully pulpit,” or covertly,. Verkkothese documents, which describe secret writing techniques and are housed at the national archives, are believed to be the only remaining classified documents from.