“When blind people take a taxi, they will be able to give directions to the taxi driver!” says Jose Luis Fernandez Coya. The man speaking really knows what he is talking about: he is blind but also heads the R&D department of ONCE, the National Organization of Spanish Blind people.
Read more:
http://www.esa.int/export/esaCP/SEMVQOS1VED_Improving_0.html