Two former Clinton Justice Department officials who are now at Harvard — former Deputy AG Phl Heymann and Juliette Kayyem, a top aid to AG Reno — have written a very good book about balancing the tension between liberty and national security. It’s called Protecting Liberty in an Age of Terror, and I review it in today’s NYPost.

To be sure, many of us will disagree with aspects of their line-drawing. But with the poisonous rhetoric that has been flying around since 9/11, it is a pleasure to read a serious, rancor-free effort to work through tough national security issues in a reasonably balanced way.