Tony Abbott is right about immigration

For many years, Australia has been turning away boats filled with migrants. From a remove, this looks coldhearted a nation built by immigrants showing no compassion for others who want a better life. But it is precisely because Australia is an immigrant nation that it understands the situation: if you let the boats land, more people come. People traffickers will be encouraged, migrants will be swindled, and their bodies will wash up on your shores. Any country serious about immigration needs a more effective and robust approach.

Tony Abbott, the former Prime Minister of Australia, made that point clearly this week on a trip to London. Delivering the Margaret Thatcher lecture at the G