Carl Bildt, former Prime Minister and Foreign Minister of Sweden, with the view from Europe:

What is going on with the recent terrorist attacks in Europe?

Well, there have been both the attacks in - one in Paris, the awful beheading, the subsequent attack in Nice, and the attack in Vienna. They've all been evidently acts by individuals without any planning, without any coordination, without any sort of major other thing behind it. That's the good news. The bad news is, of course, that these things happen. And it's very difficult for the security authorities to deal with. I mean, the Vienna case, it's obvious that there had been warnings about this particular individual, and I'm quite certain that will be quite a number of questions to be answered about that later on.