Few books in recent years have aroused more public controversy than American Freedom and Catholic Power by PAUL BLANSHARD.The Atlantic presents a criticism of Mr. Blanshard’s thesis by T. ROBERT INGRAM, together with Mr. Blanshard’s rejoinder. Mr. Ingram, a former newspaperman and naval officer who served in the assaults on Palau and Okinawa, is now studying for the ministry at the Episcopal Theological School in Cambridge. Mr. Blanshard, who has also studied theology, has had a varied career as journalist, lawyer, and public official. For a time he was an associate editor of the Nation.