Full Idea
Walzer says behind the veil of ignorance there would be no way to know how a particular good should be distributed, because we would not know the social meaning of the good in question.
Gist of Idea
You can't distribute goods from behind a veil, because their social meaning is unclear
Source
report of Michael Walzer (Spheres of Justice [1983]) by Tuckness,A/Wolf,C - This is Political Philosophy 4 'Communitarian'
A Reaction
Is Rawls actually proposing to decide details of distribution from behind the veil? There is just the maximin principle. What that means in practice would surely come once the society was under way.
Book Reference
Tuckness,A / Wolf,C: 'This is Political Philosophy' [Wiley Blackwell 2017], p.97