One week after a coordinated act of rail sabotage on Prinsjesdag (the ceremonial opening of the Dutch parliamentary year), police and prosecutors have yet to identify any suspects, and no group has claimed responsibility. On that day, metal pipes were attached to railway tracks at 35 locations, primarily in the east and north of the Netherlands, causing widespread disruption; a train near Steenwijk struck one of the pipes but avoided damage as it was travelling slowly. Rail infrastructure manager ProRail is now advocating the use of autonomous surveillance drones along the network, acknowledging that saboteurs deliberately avoided the thousands of cameras already in place, though any drone programme would require changes to Dutch law and additional government funding.