It does attempt to address it, although I contend it fails in that attempt.

>But what constitutes “based on evidence and ways of reasoning acceptable to all”? According to Rawls we can only answer this question truthfully behind the veil of ignorance2. Because only under the veil the answer would represent an agreement to limit liberty only by reference to a common knowledge and understanding of the world.

The problem is that there is no common knowledge and understanding of the world. We all have our own points of view, and we all make those assessments subjectively.