The idea has been to enable people with disabilities to live and work with the same ease as others, as they make their way forward in life. I feel sure the large majority of Americans are pleased that we are doing this.
But there is another federal program for people with disabilities that has had an unhappier effect. This is the disability insurance (DI) program, which is part of Social Security.
The idea is to provide income for those whose health makes them unable to work. For many years, it was a small and inexpensive program that few people or politicians paid much attention to.
In his recent book, "A Nation of Takers: America's Entitlement Epidemic," my American Enterprise Institute colleague Nicholas Eberstadt has shown how DI has grown in recent years.
In 1960, some 455,000 workers were receiving disability payments. In 2011, the number was 8,600,000. In 1960, the percentage of the economically active 18-to-64 population receiving disability benefits was 0.65 percent. In 2010, it was 5.6 percent.
Some four decades ago, when I was a law clerk to a federal judge, I had occasion to read briefs in cases appealing denial of disability benefits. The Social Security Administration then seemed pretty strict in denying benefits in dubious cases. The courts were not much more openhanded.
Things have changed. Americans have grown healthier, and significantly lower numbers die before 65 than was the case a half-century ago. Nevertheless, the disability rolls have ballooned.
One reason is that the government seems to have gotten more openhanded with those claiming vague ailments. Eberstadt points out that in 1960, only one-fifth of disability benefits went to those with "mood disorders" and "muscoskeletal" problems. In 2011, nearly half of those on disability voiced such complaints.
"It is exceptionally difficult -- for all practical purposes, impossible," writes Eberstadt, "for a medical professional to disprove a patient's claim that he or she is suffering from sad feelings or back pain."
In other words, many people are gaming or defrauding the system. This includes not only disability recipients but health care professionals, lawyers and others who run ads promising to get you disability benefits.
Between 1996 and 2011, the private sector generated 8.8 million new jobs, and 4.1 million people entered the disability rolls.