MAY 3 was World Press Freedom Day, the 20th annual celebration of this most essential of human rights. But you would be forgiven for wondering what there is to cheer about.

The previous day, Freedom House, an American non-governmental organisation, produced research suggesting global freedom of expression is at its lowest ebb for a decade. It charts the many countries whose record had deteriorated during 2012, from out-and-out dictatorships and more “modern” authoritarian regimes to self-proclaimed democracies.

Some of the worst performances, in countries such as Mali, were the result of political turmoil and civil war. Russia and China continued on their grim ways, armed with a combination of legislation, thuggery and increasing technical nous. State-dominated media hampered free elections from Venezuela to Ukraine. New laws prevent effective investigative journalism in South Africa. Ecuador is going downhill; Thailand, too. The list goes on.