While perusing the topics on this excellent site I have just glanced at my thousands of books and Jack Higgins " The Eagle Has Landed " caught my eye. Yes I know its a novel and what it was doing in my serious history section is a puzzle but I would like to know if there is anything true it is based on. Also, my apologies for two topics but they are connected, if there is any basis of fact would documents still be sealed until a certain date and does anyone know of documents or incidents that are still sealed and for how long. I am always amazed at some of the documents released after 50 or 60 years of secrecy and wonder what is so damned important that they were kept under wraps for so long. Any help would be much appreciated.