The calls for the author to be killed apparently came after a speech he gave in Cairo last week in which he criticized radical Islam and Egypt's Muslim Brotherhood, accusing them of spreading "religious fascism."
Abdel-Sadam reportedly also said he did not intend to insult Islam but had a right to express his views.
Shortly after his speech Assem Abdel Maged, a leading member of the radical Egyptian group Gamaa Islamiya, used a television appearance to declare Abdel-Samad an "infidel."
Numerous Islamist web sites subsequently published a picture of the author with the words "wanted dead" written above. [Deutsche Welle] Read more