I absolutely loved Berman's Terror and LIberalism, and I wanted to read this because I'm very interested in the intellectual history of the War on Terror period. It's not as good, but it's still interesting. The heart of the book is an examination of Tariq Ramadan, a Swiss born professor and theologian who is the grandson of Hassan al-Banna, the founder of the Muslim Brotherhood. Ramadan was controversially denied a visa when he received a faculty position at Notre Dame because he had said some things that seemed sympathetic with second intifada terrorism against Israel. TR was often held up by liberals as an example of a modernizing, pluralistic Islam.
Berman opposed the barring of TR from US soil, and he eventually sued and won against the Bush admin. However, Berman's purpose of this book is to critique fellow liberals who seem overly defensive of TR, as well as selective in the way they present his ideas. I admire that Berman didn't pick left-wing nut jobs to criticize but serious liberal writers like Ian Buruma and Timothy Garton Ash. His argument is that TR is not really a moderate at all, or that if his views represent "moderate Islam," then we still have a major gulf between liberalism and moderate Islam. He shows TR's controversial views on things like the role of women (including the beating of women by their husbands), his endorsement of terrorism against Islam, his opposition to secular government, and other views that are incompatible with liberalism. He also shows Ramadan idolizes Islamic leaders like Banna, Qaradawi, and others who are full-on theocrats who support violence in the name of spreading Islam and toppling secular governments. He then points out the absurdity of many liberals attacking or condescending to Ayaan Hirsi Ali, who embraced much more liberal positions than TR.
This book fits with Berman's larger theme that in the age of the War on Terror, there is a larger ideological enemy for liberalism: Islamism, a fundamentally authoritarian and illiberal ideology. This doesn't mean we have to spread democracy by force, that we can't have productive relations with Islamic nations, or that there's some clash of civilizations going on. But, he argues persuasively, there is not much room for liberals to remain liberals while endorsing people like Ramadan. After all, liberals soft-pedal people like TR but treat the Christian right in the US as a fundamental enemy.
This isn't a must-read, but it's a solid book. Terror and LIberalism, however, is one of the most interesting books of the GWOT period, imo.