article_snippet: Last month, in a video showing the beheading of 21 Egyptian .
article_snippet: Coptic Christians in Libya, one of the killers said: 'Safety for .
article_snippet: Coptic Christians in Libya, one of the killers
article_snippet: A website used by militants ran a photo montage showing the . movement's black flag flying from the obelisk at the centre of .
article_snippet: Last month, in the wake of killings by Islamist militants in .
article_snippet: Paris and Copenhagen, 4,800 soldiers were placed on the streets .