that size suggests copan was then a chiefdom. the name of the ruler who actually commemorated this stela appears up here on the side of the monument. keach: although archaeologists can't yet read his name, he describes himself here as having an eye like the sun. later kings would use the same description for themselves. in the next glyph, he says that his father was the man named in a third glyph -- the founder of the dynasty. this is the earliest evidence that copan rulers passed their rank to heirs. a big man could not do that. to some archaeologists, this was evidence of ongoing leadership, of a ranked society, a chiefdom. after the reign of the first kings of copan, the population continued to grow to about 15,000 by a.d. 700. at this level, some societies begin to form states -- political organizations where real power is centralized. but was there evidence that the highest ranking chief actually consolidated rulership to become head of state here ? these are stelae of the twelfth ruler of copan, a man named smoke imix. as k

from the tribes of highland new guinea and the chiefdoms of the american northwest,

we're helping adjacent chiefdom as well. >> wait. who cares about my question. say that for $2400 and early prevention, you can say in this community, the substantial community, no one else has been lost. >> correct. >> i think about the conversation about billions going and what feels look a kind of back end, so it's going to build the tents and do all of the work after -- after the ebola has already been transmitted and we have patients -- which is critically important, undoubtedly -- but are we missing the story about how to prevent on the front end? >> absolutely. i don't think there's any question, but that the global community responded late. national governments responded late. part of the reason for that is because the first outbreaks were way up in the countryside, about ten hours from free town, for example, by road, which is where we operate. the same in liberia, far in the northern part of the country but it wasn't until outbreaks and infections in the cities that the national governments really took it seriously. likewise, when the virus was exporte