In a reckless fit of judicial activism that will redound for generations, the Supreme Court on Friday overturned Roe v. Wade, the half-century-old precedent that declared that Americans have a constitutional right to obtain abortions. It is hard to exaggerate how wrongheaded, radical and dangerous this ruling is, and not just for anyone who could ever become pregnant. A 5-to-4 majority has thrust the country and the court itself into a perilous new era, one in which the court is no longer a defender of key personal rights.