Was Israel’s strike a ‘tragedy’ or a war crime?

Australian Zomi Frankcom and six others died when their convoy of aid vehicles was struck by Israeli missiles in Gaza.  Israel says it was a mistake and a tragedy. But is its explanation good enough? Today, host of ABC’s 7.30 program, Sarah Ferguson, on what we learnt from her interview with an Israeli military spokesman and whether what unfolded was a war crime. Featured:  Sarah Ferguson, presenter of ABC 7.30