Just a single chapter, but I think a pretty full one. Even police officers and soldiers, whose callings make them at least potentially dealers in death, not infrequently have unhappy afterthoughts when circumstances require them to actually perform that kind of job, so is it surprising that a civilian like Jack is disturbed about his role in what transpired?
We're on the home stretch of A.I. now. Where do Jack and Lisa, and Spook, go from here? I wasn't sure myself as I was writing this until I actually reached this point. The next few chapters resolve that. The final part is quite short, actually. I'll finish posting by next Friday.