the way we did business and before the arrival of jtac, there were a lot of separate bits round whitehall dng terrorist assessment, but actually my service had the sort of monopoly responsibility for producing terrorist assessments and had done for many decades, and we suggested that we should give up this monopoly role and build something that was cross- departmental. i had extensive discussions with david omand, who i think has given evidence on this, on creating this new organ. several departments were anxious about this, notably the mod and the dis to begin with, but once everybody decided to go for it, departments like the mod were very supportive and i think we created something which thrives -- i don't know how big it is today -- which brought views from across the whitehall community, from within the intelligence community, from other departments, and led to a more comprehensive and richer analysis of the threat. it has also, jtac, become very helpful in guiding investigations and operations and it is much imitated. when i was director general, senior visitors to london very regul