After the security aspects, the tac database went into issues of timing and "disposition of assets"-basically, estimates of time for penetration, total mission duration, fall-back points, meeting locations, and various contingency plans in case the whole thing hosed up. There was even an estimate of our chances of success: 90 percent, with a confidence interval of plus or minus 4 percent. (Now, where those figures came from, I couldn't even guess. But they were presented in such an authoritative style that I dared not take issue.) All in all, it was a piece of work almost military in its precision. Considering the background of the team leader, of course, that shouldn't have come as a surprise.