deletions | additions       diff --git a/Lecture_15_Missed_a_couple__.md b/Lecture_15_Missed_a_couple__.md  index 8c64111..befa94f 100644  --- a/Lecture_15_Missed_a_couple__.md  +++ b/Lecture_15_Missed_a_couple__.md 
...
From famines last century to chronic malnutrition this century.  Focus on preventing bad rather than promoting good?