On Wed, 9 Aug 2006, Matthew Black wrote:
Use of "captchas" has serious accessibility issues:0 visually-impaired users will have trouble completing forms. From a legal standpoint, this is a no-go and most definitely not possible for any government or public-sector agency in the United States.
Ditto for at least one EU jurisdiction, and likely several more of them.
I can't quite remember if there already is a directive issued, but there definitely was/is an EU working group looking at a variety of equality issues.
In Ireland, captchas would likely contravene the Equal Status Act of 2000 with respect to providing services, which applies to *all* persons and bodies. I believe the UK may have similar legislation in force (though I can't recall the name of the act).
Turing tests can /easily/ be implemented in ASCII, which is compatible with screen readers used by the visually impaired.
regards, -- Paul Jakma [EMAIL PROTECTED] [EMAIL PROTECTED] Key ID: 64A2FF6A Fortune: "I have not the slightest confidence in 'spiritual manifestations.'" -- Robert G. Ingersoll