How does this work, then? Do you get an email the day before your trip asking the questions and requiring you to respond before boarding? Are they going to have TSA-like screeners at the train station to let you on the platform? If, for some reason, you didn't respond to the email questions, are they going to question you at the station and not let you board if your answers are "wrong?" I don't mind answering the questions, but I wonder why they didn't bother doing this last year when there was more risk out and about.