After Israeli Prime Minister Binyamin Netanyahu in a recent U.N. speech cited a book of Ayatollah Ali Khamenei’s sayings, the regime responded this week – not by defending what Netanyahu called “a 400-page screed detailing his plan to destroy the State of Israel,” but by promoting a free online version of it. A Twitter account associated with Iran’s supreme leader posted a tweet this week reading, “Download the book which stirred Zionist regime’s reaction,” along with a link to an English translation of the e-book. Entitled, “Palestine: The Most Important Problem of the Islamic World,” the book is a compilation...