As someone who just made the switch from planes to trains (I regularly travel on an inner-german route where planes do make sense): If the hordes would invade I

As someone who just made the switch from planes to trains (I regularly travel on an inner-german route where planes do make sense): If the hordes would invade ICEs, I would go back to the airport. Long-distance rail is over-encumbered as it stands, and more people means less reliability.