Ordo can handle this in one of two ways. The obvious way is to decrypt all of the messages and convert them into plaintext files on his hard disk, which he can then read any time he wants. The problem with this (if you are paranoid) is that anyone who gets his hands on Randy’s hard disk can then read the files. For all he knows, the customs officials in Manila will decide to ransack his computer for child pornography. Or, fogged by jet lag, he’ll leave his laptop in a taxi. So instead he puts Ordo into a streaming mode where it will decrypt the files just long enough for him to read them and then, when he closes the windows, expunge the plaintext from the computer’s memory and from its hard drive.