revenge has destroyed them all long before they're physically dead. >> rose: earlier this year nick shifrin was the first reporter to broadcast inside osama bin laden's compound in pakistan after he had been killed and taken to sea by u.s. forces. shifrin wrote a piece in "foreign policy" magazine coaring u.s. foreign policy to titus andronicus. i'm pleased to have nick shifrin along with professor david kastan and talk about what it was they believe is important to understand from this shakespearean experience you'r teaching, he's sitting in the classroom and what are you seeing? >> well, what happened was... it's interesting because columbia... the attas were a tuesday. i don't remember and i think nick doesn't remember what i said on that tuesday. we started that class... the class was at 9:00 a.m., we entered that class at 8:45, 8:50... >> rose: knowing what had happened? >> not knowing. very little. >> this is what was extraordinary. and you realize only ten years ago before smart phos, before wired classrooms. so 120 columbia students were sitting there. i had been talking tosome peop