Supreme Court divided on issue of apostrophe s

Hehe, fun article.

"As one of its final acts last term, the U.S. Supreme Court issued Kansas v. Marsh, a case involving the constitutionality of a state death-penalty statute. The 5-4 decision exposed the deep divide that exists among the nation's intellectual elite regarding one of society's most troubling issues -- namely, whether the possessive form of a singular noun ending with the letter 's' requires an additional 's' after the apostrophe."

full article at law.com

I happen to be firmly in favor of adding the extra s. It may get bulky, but to me the logic is almost mathematical.