My biggest question with PTC has and always will remain: how will they ensure it's secure? The government has always and continues to consider the railroads one of the most likely, most vulnerable, and most tempting targets for terrorists or unfriendly nations to attack. When Trump came to town a few week ago the railroad I work for got shut down and Secret Service Agents watched over my train for the duration of his stay as it had quite a lot of very nasty hazmat. If They are worried about boots on the ground using the railroads as weapons, I would love to know why they are not worried about a computer system one could hack from anywhere on the planet which could be used to weaponize the railroads, or simply shut them down and bring our economy to a halt. I've heard the "it's not possible to hack PTC" or "no way it could be used like that" but every computer system is hack-able, and I can think of a few ways one could use it to halt rail operations or weaponize a railroad. It's a very concerning thought to me.
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