Bangladesh, June 5 -- The structure of jihadi/takfiri Islamic terrorism has begun to take a significant turn. Terrorist Muslim groups are becoming leaderless. This new form borrows from the anarchist theory that by being diverse, amorphous, and flexible they are less easily attacked and destroyed.

Egypt, and the Sinai Peninsula in particular, faces an existential threat from these autonomous groups. Western news outlets scarcely report them, but local organizations, such as the non-government group Eshhad, track sectarian attacks against religious minorities in Egypt do. Since it was founded on August 14, 2013, Eshhad has documented over 500 sectarian incidents or attacks in the country.

The new approach using leaderless terrorist group...