I thought recent months have shown notes, pictures, audio recordings, phone and texts, etc. generated by a gov. worker while on duty or related to their duty are the property of the US gov. Regardless of what actually happens or is supposed to happen to the forms or books, isn't it amazing how quickly thirty or fifty thousand 'lost' emails can be scanned for classified material? Some folks seem to get a lot of mileage out of incidentally collected info.