Going back to the rail link issue, I normally fly into and out off EDI but last summer I had an evening flight from GLA. I had been warned the M8 would be busy so left plenty time but I was amazed at how congested the M8 was and would agree with the view that some sort of rail link, probably light rail, is needed. As an émigré Scot living in SE England who has connections with both the East and the West Coast, I have no axe to grind (other than wanting to be able to use both EDI and GLA with ease) but it does seem to me odd that Edinburgh can massively overspend on half a tram system (and now be talking about building the other half) whereas Glasgow can't get a (light) rail link to the airport. Is there a bias in favour of Edinburgh as it's where the MSPs hang out?