megrahi's the tip of the iceberg. if i was writing the novel version, we would have identified not only the people who put the bomb on the plane, but those who ordered it up the chain of command, and put them all in jail. that would have been the fantasy. (knocking) >> dornstein: over the years, i have gotten to know a lot of the investigators and prosecutors who worked on the case. >> dornstein: stuart henderson. >> ken, pleased to meet you. >> dornstein: i've visited their homes, here and abroad, and heard their stories. >> we didn't have any evidence of that. >> dornstein: they're almost all retired now, and almost to a man, they feel unsatisfied with the way it all ended. >> how frustrated do you think we are to be detectives who've been all over the world trying to get an answer to this and can't get access to what we want? at no stage did i ever say i just wanted megrahi. i said i wanted all of them, because there was no doubt in my mind he isn't the only one. he was the baggage man, and he got caught, and right

al megrahi was the only person convicted because he's the only person that the evidence led to. but if he did this, he didn't do it by himself. al megrahi's the tip of the iceberg. >> woodruff: "frontline" airs tonight on most pbs stations. that brings us to our newshour shares of the day, something that caught our eye which might be of interest to you, too. the john d. and catherine t. macarthur foundation announced a new class of 'genius grant' fellows today. the winners include a urban sociologist, an environmental engineer and playwright lin- manuel miranda. in a foundation video, miranda spoke of "hamilton", the broadway musical he wrote about founding father alexander hamilton that opened in august. >> i fall in love for a living. i write musicals, and musicals take a long time to write, so when you have an idea, you really have to fall in love with it. ♪ i'm past patiently waiting. >> with hamilton, it's a perfect marriage of function and form. hip hop is uniquely suited to tell his story growing up orphaned, penniless. hip hop has the energy of revolution, has the energy