I am trying to remember a term for a specific zone designated around a bomb during its diffusal. Something about only certain people being able to pass through, or exchange places during the disposal operation. The term may apply to the rules followed in that zone, rather than the zone itself. I may have got some of the details wrong, but the term designates a transition area. Something about the way that site is regulated and the procedures of disposal are carried out that ensures the safety and authority/hierarchy of the teams undertaking the task (usually during war).

For bonus points, I heard this term because it was the title of an exhibition in London some years ago. Wish I could recall the term, or the exhibition.

Thanks

We have confidence in our science-based civilization and think it has tenure. In so doing, I think we fail to distinguish between the life-span of civilizations and that of our species. In fact, civilizations are ephemeral compared with species. Humans have lasted at least a million years, but there have been 30 civilizations in the past 5000 years. Humans are tough and will survive; civilizations are fragile. It seems clear to me that we are not evolving in intelligence, not becoming true Homo sapiens. Indeed there is little evidence that our individual intelligence has improved through the 5000 years of recorded history.