Portside

Governments in Washington, London and Paris should realise that in one respect the slaughter by chemical weapons of hundreds of people in Damascus on 21 August is an opportunity as well as a crime. It is an opportunity because the chemical weapons atrocity and the crisis it has provoked show that the Syrian civil war cannot be left to fester. The use of poison gas is the grossest sign, but not the only one, that the level of violence is spiralling out of control.