There's more to the cost of regulations than just the money that people have to pay under them.
The case in favour of a revenue neutral carbon tax really isn't all that clear cut.
Perhaps we don't want a "Manhattan Project" on renewable energy.
But we probably do want open source science on some of these climate change questions.
What it's like to go shopping where you don't have an efficient distribution system (ie, no Tesco's or the like).
It's official (if an unfair method of calculation). Gordon Brown is the worst PM ever for pensions!
And finally, Obama the opera.