WASHINGTON (AP) -- Americans, except those who worship regularly, aren't producing enough children to support elderly retirees.
The plunging birth rate and its consequences are documented in Jonathan Last's new book, "What to Expect When No One's Expecting."
It tracks how the retiring baby boom generation, which embraced contraception and legal abortion, has borne fewer taxpayers to fund Social Security and Medicare. Last told an audience at the Family Research Council that means either the diminished younger generation will have to be taxed more or retirees' benefits will have to be cut.
He noted that young Americans also are putting off marriage, reducing their own child-bearing years.
Last said government incentives to have children haven't been effective in other nations, but religion has been shown to boost fertility among those who worship every week.
Copyright 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.