Most Jews, Muslims, and Christians are devoted and faithful. Still, on any given day, it's difficult to avoid the vigorous and heated disputes between them, whether over the -Ground Zero- mosque, lobbying state legislatures against Sharia law, sharing worship space, dissecting the fallout of the Arab Spring, protecting civil rights, or challenging the authority of sacred texts. With so much rancor, can there be any common ground? Do they even worship the same God? And can religion, which often is so divisive, be any help at all? Four internationally known scholars set out to tackle these...