If You Are Committed to Justice, Why Aren't You an Activist? Comments on Allen Buchanan.

In response to Buchanan's argument that ideologies function as doxastic immune systems, I invite him to expand on three issues. (1) What does it mean to have a perfect grasp of the principles of justice, and why should we think that someone with such a grasp should be in a position (even if unable) to act justly? (2) What is required to be fully epistemically responsible when in the grip of an ideology? (3) Might we learn more from contemporary Critical Theory about the workings of 'doxastic immune systems'? [ABSTRACT FROM AUTHOR]