"People with disabilities are the poorest, least employed, and least educated minority in America. At the end of 1995, it was estimated that one out of five people in the U.S. had some level of disability, one of ten, severe. Too often, people with disabilities have been treated as second class citizens, shunned and segregated by physical barriers and social stereotypes. They have been discriminated against in employment, schools, and housing, robbed of their personal autonomy, and too often, hidden away and forgotten by the larger society. By and large, people with disabilities continue to be excluded from the American dream."
I think this is a summary lead because it states most of the information that proceeds the article. It lists who, what, where, why, this article was written. It also states the opinions of what the writer feels about these topics.
Many people in the earlier 1900's were horrible to people that were disabled or mentally ill. As times have gone on we have gotten better about treating them like we treat each other. It is good that we all agree that today these people should be treated right, however, it makes us work slower to improve these goals we have further.
This is also a summary lead because it is short and describes how these problems involve every person in the world. It gives you a "summary" of what will happen in the following piece.