Landfill about 16 miles east of downtown los angeles, a 100-mill ton solid soup of trash. what is it you visited the people working in different professions, what was it that made them so contented and what on the contrary, what made other people hisserible in the job? >> the landfill was the biggest surprise i think in terms of the mood of the worker. you wouldn't think the trash dump is filled with happy people. but in fact, everything -- you know, the engineers invented so much of the technology of, you know, what to do with our waste, so much of the technology that's used worldwide was inv...