Amedy Coulibaly in a still from a video released Jan. 11.

Heather Timmons, Quartz: The latest Islamic State video shows how hard it is to shut down jihadist propaganda online

WNU Editor: The West may have problems shutting them down .... but it appears that they have no problem shutting us down .... U.S. Central Command Twitter Feed Hacked By Islamic State Sympathizers. Update: YouTube Account Also Hacked

But I guess that is the nature the internet. Small extremist sites can thrive for a short time, and when they are shut down they will just pop-up somewhere else. Giant websites like the Pentagon .... not so easy to just shut down and go somewhere else.