Do Web sites have to be usable for people who are blind?
You might think no, but people are suing Target, saying that the Web site doesn't work with screen readers that they use to "read" Web pages.
http://news.com.com/Blind+patrons+sue+Target+for+site+inaccessibility/2100-1030_3-6038123.html
Should Web sites be required to set up their Web sites this way? This is an answer the courts will apparently decide.