I worked for the State of California and it was made very clear to me that under no circumstances was I to hire a disabled person because you can never get rid of them.
The legal relationship at interview time is much more tenuous than once a job offer is made. And we were VERY careful to not talk about the disability at all during the interview process. If the interviewee brought it up, we asked them to discuss it with the HR department.
I know we weren't alone.
There is a conservative talk show hosts that started here in Pittsburgh (now on XM satellite radio 1065) named Jim Quinn, and one of his 'laws' is:
"Liberalism always generates the exact opposite of its stated intent"
fits.