"I cannot see how over 6,ooo people can be mercilessly slain without someone being called to account."
Quite right. But....
(bit off topic) are the 10,000 plus families of people killed EVERY YEAR in the US by handguns waiting for Bush's 'War on Firearms' to begin? I think not. Aren't we all glad to live in the 'civilised' world!
Like civilisation, terrorism comes in many forms. Sadly the victims rarely get the chance to distinguish.