The IMF will not disengage from Greece.

A comparison between Greece today and Brazil in the past is of limited value, due to the number of fundamental differences between the nations' situations.

Fewer companies are doing AIDS drugs research today than were in 1997, which is significant because breakthroughs are constantly and urgently required, and resistance to existing drugs is surging.

DDT is still a critical weapon in the battle against malaria and other insect-borne diseases.

DDT has been more effective against malaria than any other intervention, but inaction and political hostility may halt its recent renaissance.