If Mr. Trittin (minister for the environment, green party) intends to help the german railways he'd better make them rethink their new pricing concept. If everybody needs to book fixed times on railways he can easily pick some flight instead and hunt for a bargain ride. This is why many rail pax divert to flying.
Railway pax want flexibility and lower prices. Problem is not lowcost air pricing itself.
Anyway Jürgen being the minister himself is entitled to use the famous Flugbereitschaft of the Air Force for free anytime.