Steven Sotloff was the grandson of two Holocaust survivors who was fully aware of the risks of reporting from Middle East - and made it his career anyway. Friends say he spoke fluent Arabic and had shown a deep love for the Islamic world before he was captured by IS militants in Syria in 2013. He was shown to be executed by them on Tuesday in a video lasting just under three minutes. The militant then threatens the life of David Haines, a British citizen kidnapped in March 2013. Haines has had years of experience in non-governmental organizations and military environments working with Nonviolent Peaceforce (an NGO in consultative status with the UN).  An official said that Haines was ‘very familiar with insecure locations.’ See also: