It is always informative to engage in a retrospective assessment of the use of technology in a terrorist atrocity and see what we can do to make their activities more difficult (and prevent knee jerk reactions that only make the lives of law-abiding people more difficult). The first reports on the use of mobiles by suicide attackers of Mumbai are coming out: Mr. Muzammil, who is the right-hand man to Zaki-ur-Rehman Lakvhi, the operational commander of the group, talked by satellite phone to the attackers from Pakistan when the gunmen were in the Taj and Oberoi hotels, the Western official said. The attackers also used the cellphones of people they killed to call back to Mr. Muzammil somewhere in Pakistan, the official said.