...or so says the Wall Street Journal.
Possible explanations (none exclusive, and none clearly verifiable) include:
that boomers divorce more frequently, and live longer, than their parents, and thus have a higher rate of re-marriage;
or that our lives are simply overwhelmed by fear of litigation; or
that the financial crisis has simply taken some of the romance out of romance.
. . . and apparently the Australians, who've only had pre-marital agreements recognized for about the last decade, are way ahead of the U.S., with a recent report saying that ten percent of couples are using them.