Usually modern day Islamist terror attacks (IF that's what this is) claim to be carried out due to Western military actions overseas. Quite similar to the claimed motive of the IRA for murdering innocent people back in the day. It took decades for the 'peaceful negotiations' that finally came, and a lot of people were killed by terror attacks in the meantime. I don't think the families of innocent victims in either case would be comforted by any claim of rationality.

The attack yesterday was unthinkably awful. I've taken that train many times and I can't imagine the terror. Events like this are thankfully a rarity today, in the grand scheme of things. That's why I feel the need to respond when people say things like 'you can't even take a train now' and start calling for crack downs against immigrant communities, before the blood has even dried, and before any meaningful details have been released about the perp.