1.   One of the deadliest, now that people are no longer vaccinated against it, is the smallpox virus, which causes devastating epidemics in unprotected populations.

2.   Should chemical warfare be used against an unprotected civilian population in Seoul, enormous casualties would result, the officials said.

3.   Even for an unprotected population a large-scale chemical attack would have less impact than a small atomic bomb.

4.   Supporters said the granting of amnesty would mean immediate access to minimum wage and other labor rights for previously unprotected populations.