It's unfortunately rare but it does occasionally happen. Someone makes [3] a sensible suggestion for a government policy (err, writing for a think tank perhaps that should be sometimes people not working for this think tank also make sensible suggestions...).

Cocaine addicts should be prescribed the drug by chemists and nurses to help them overcome the habit, the Government’s drug adviser said yesterday.

If we're not going to be able to make people see sense on the liberty front (your body, ruin it as you wish) can we at least have policies which reduce the harm to the rest of society, of which this is obviously one. 

The ACMD also backed a change allowing nurses and chemists to prescribe diamorphine, cocaine or dipipanone to addicts under licence from the Home Office, in a bid to manage their problem. Ministers will now consider the proposal. But David Davis, the shadow home secretary, said: “If Gordon Brown signs up to this, it would show yet again that Labour merely seek to manage drug addiction rather than end it."

So yes, the idea is that this will be, for addicts at least, legalisation of a sort and thus a way to end some of the worst effects, impurities, disease, overdoses and the lethality of the scramble for profit in the illegal trade (btw, I looked it up: diamorphine for an addict would cost about £20 a day. Vastly cheaper for us as a whole than the current idiocy of the War on Drugs.).

My apologies to David Davis on this one (he is rumoured, as an ex SAS Territorial, to be able to kill me with a plastic spoon) but you're at the wrong end of the argument here. We've shown over the past few decades that we cannot end drug addiction (even if we were to destroy every vestige of liberty, as Milton Friedman pointed out [4]) so all that is left to us is the possibility of managing it. We can do that sensibly, by making clean and pure drugs available to those who would take impure and grossly expensive ones if those were their only option, or we can carry on with the current policies which a) don't work and b) kill people.