Rebecca Swift, from the RNIB, said catching a bus should not be "a sight test".

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Offer to work for a while for free or for your bus fare for a few months to test you out.

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Local civil rights activists were looking for a test case to challenge the bus segregation laws, and that spring lawyers considered having Ms Colvin sue the bus company.

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Into it went information on test scores, classes taken, schedules, grades, attendance, demographics and, soon, bus routes.

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