Morning Extra - Is free bus travel working for pensioners?

Groups representing pensioners and those with disabilities say they can't make the most of their free passes because they live too far from a bus stop. They want more routes, more services and more accessible buses. And should public transport be available to anyone, anywhere, at any time: free of charge? The Scottish Socialist Party campaigned for universal free public transport at the last Scottish elections. We find out how such a scheme would work. Graham Stewart takes your calls, texts and emails.