Three months after Ambassador Christopher Stevens, a diplomat and two CIA contractors were murdered in Benghazi, there is no sign of the killers being brought to justice by the United States.

The investigation into the attacks has been hampered by the reluctance of the Libyan authorities to move against the Islamist terrorists identified by the FBI as responsible for the killing, according to American officials briefing the ‘New York Times’.

None of the suspects has been arrested or killed and some have fled Libya.