Dr Paul Jarman contacted us following our coverage of what changes had occurred since the RNIB took over the National Library for the Blind. He noted something that we had not mentioned. He believes there has been a seismic shift toward students and tutors like him, no longer being able to access as many serious books as once before. He lays out his concerns in this area and explains why he believes braille books should be regarded as heritage items. Our reporter in Washington, Gary O'Donoghue talks us through a new partnership between access tech companies Aira and Envision. Together, they have created 'smart glasses' that enable you to be put in contact with a sighted agent, completely hands-free. Gary demonstrates how they can be used to assist with daily tasks and navigation. Presenter: Peter White Producer: Beth Hemmings Production Coordinator: Paul Holloway Website image description: Peter White sits smiling in the centre of the image. He is wearing a dark green jumper with the collar of a check shirt peeking at the top. Above Peter's head is the BBC logo, Across Peter's chest reads "In Touch" and beneath that is the Radio 4 logo. The background is a series of squares that are different shades of blue.