UK University Tuition fees explained

This from Nick Robinson, political editor of the BBC:

'The minister who introduced student tuition fees now says a graduate tax may be better even though he once described the idea as unworkable...

he's opposing the man who pledged to oppose any increase in fees who now insists it's the right thing to do...

... who's in coalition with a man who wrote a manifesto promising that his party would scrap fees but is now planning to double them.'

Hope that's clear.