In message <[EMAIL PROTECTED]>, John Gilmore writes:

>If they could read the license plates reliably, then they wouldn't
>need the EZ Pass at all.  They can't.  It takes human effort, which is
>in short supply.
>

There are, in fact, toll roads that try to do that; see, for example,
http://www.where.ca/toronto/subcategory_guide.cfm?subcategory_id=25&category_id=24&subtitle_id=142

But it's not foolproof; see
http://66.102.7.104/search?q=cache:ELIC5NLh1qQJ:www.canoe.ca/Columnists/blizzard_feb18.html+ottawa+%22licence+plate%22+%22toll+road%22+toronto+problem&hl=en
(the original seems to have expired, hence the reference to the Google 
cache).

                --Steve Bellovin, http://www.research.att.com/~smb


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