For the family members of many 9/11 victims, regret will always be a heavy, oppressiveweight. It seems impossible to stop wondering about what might have been, what should havebeen. Some people fixate on words that weren’t said, or on last-minute circumstancesthat had taken their loved ones to work earlier than usual. Sampath Pakkala can’tstop thinking about two things: one is the job his wife Deepa had and the other is what heshould have done.