The Atlantic's Hugo Schwyzer has a theory: that masturbation, as the most common sex act, is the heart of modernity's war between Christianity and secularism.
Many progressives were bewildered by Antonin Scalia's blistering 2003 dissent in Lawrence v Texas, in which he warned that state laws against evils such as "adult incest, prostitution, masturbation, adultery, fornication, and bestiality" might be invalidated as a result of the decision. Why, liberals wondered, was masturbation included on that list? The answer is simple: masturbation remains not only a grave sin in the eyes of the Catholic Church to which Scalia belongs, but its acceptance as benign and healthy is perhaps the foundational error of modern sexual culture.