Taking a vacation in the Netherlands after a terrorist incident

Just heard the sad news about a terrorist attack on a tram in Utrecht. I trust lightning won't strike twice - I'm going by Eurostar to Amsterdam tomorrow. Maastricht at the end of the week and home via Brussels a week today. We've lived with terrorism in the UK for decades so I ought to be sanguine about it, but I can't help feeling a tiny bit apprehensive. Bah, live dangerously, why not?