involved. this has been treated enormously seriously. this is the first major attack that's got through since the london bombings back in 2005. over the last few months british counterterrorism officials have been speaking to me and have been speaking about the threat to the u.k. in very stark terms saying bigger than it's ever been in the modern history of britain. they're dealing with unprecedented threats. not only from isis, but also from other british individuals. also, people inspired by isis and a good number who are communicating with isis by encrypted apps. some are sending messages and instructions to launch attacks back in the u.k. that's been a huge part of the recent threat stream in europe, wolf.