Dutch trains, buses, metros and trams were at a standstill for three minutes this weekend in protest against increasing violence against public transport workers. At 10:30 pm (2030 GMT) Saturday evening, almost all public transport in the country came to a halt and all shops at railway stations closed their doors. In Amsterdam, the ferries also stopped running. A spokesman for Dutch Railways called it a success: “All trains were at a standstill as far as we could see.” The head of the railway workers’ union Wim Eilert spoke of an important sign: “Even if it is only symbolic and does not stop t…