Apparently, armed citizens can help in some cases. Three armed people stopped a nuthead shooting in train in France:<p><a href="http:&#x2F;&#x2F;www.theguardian.com&#x2F;world&#x2F;2015&#x2F;aug&#x2F;21&#x2F;amsterdam-paris-train-gunman-france" rel="nofollow">http:&#x2F;&#x2F;www.theguardian.com&#x2F;world&#x2F;2015&#x2F;aug&#x2F;21&#x2F;amsterdam-paris...</a>