The airline that I worked for required ALL employees in all departments to periodically sign a confidentiality and business ethics agreement. I was in passenger services, and our company which was in intense and fierce competition with other carriers considered things that outsiders might consider mundane, to be confidential.
Any procedure that we had developed was after long and careful analysis, and if it resulted in even a slight advantage over the way others did things, was a 'trade secret'. We had a very well developed computer reservations system and other computer systems that were considered trade secrets as well. And that definitely included operations manuals issued to employees...
I agree. But, very little that goes on inside the cabin is considered confidential information. The comment that all employees are now required to sign confidentiality agreements I guess doesn’t surprise me, as I see how flight crews can be routinely exposed to “trade secrets” doing ground work . A reservation system, route planning, fare structure, maintenance schedules, supply control and distribution, and other resource management procedures are proprietary, but how the flight crew operates the aircraft, or how the cabin crew attends to their responsibilities are not confidential. I can get a flight manual for every aircraft an airline operates, and each airline does write their own flight manuals. Aircraft operating procedures have to be on file with the FAA.
To tie this all in and keep it on topic, it is the same with Amtrak. Many of the things in that handbook are based upon Federal or State regulations. Things that are not defined by regulations still can’t really be trade secrets, or proprietary information in a government operation. Public records is an area where I have quite a few years of experience, and there isn’t much that you can keep from the public if a reasonable request is made for the information. In most cases, as with requests from the media, the government is obliged to demonstrate why release of information would compromise an investigation, interfere with due process in criminal justice operations, bring unnecessary harm to someone, or compromise national security.