officials here are always concerned about some sort of lone wolf and ottawa-style situation. that is the predominance here because isis is not operational the way al qaeda is, at least we don't think it is. they are more of a threat in the middle east and threats to their neighbors and obviously to journalists and others who become their hostages. but they have not been a threat in terms of a bomb making ability of al qaeda in the rainian peninsula or some of the other terrorist groups. >> right. when the isis threat really became apparent this summer, the growing threat, the intelligence and counterterrorism officials said they didn't seem to pose a direct threat to the united states. they cited other groups having greater ability to carry out attacks in the united states. but they of course raised the possibility that anyone inside the united states who would be inspired by isis could, under that banner, carry out attacks like this.