 Dr Roy Kozlovsky notes that the prior existence of the One Million Plan suggests that "the concept of the ma'abara was in fact the precondition for, not the effect of, mass immigration".Dr Piera Rossetto described the debate around the conditions of the Ma'abarot, stating her opinion that "the most controversial issue in this respect is not the outcome (e.g.the ma’abarot) of the choice, rather the choice in itself to bring to Israel so many thousands of immigrants, following the idea of the “One Million Plan” unveiled by Ben Gurion in 1944".