Branding Terrorists

Ironic Sans offers an interesting and somehow disturbing look into the branding of terrorist organizations. Who designs their logos? Is the point to strike fear or be memorable or both? David clarifies that he's not trying to glorify these organizations or make light of the devastation they wreak. He writes:

Terrorist groups, like any organization, need brand identities. With so many groups claiming credit for terrorist acts, and so many videotapes being put out featuring men in ski masks, it’s hard to keep track of which group committed what violent act. So terrorist organizations have logos. It recently occurred to me that someone had to actually design those logos. But how did they decide who gets to do it? Did the job go to whichever terrorist had a copy of Adobe Illustrator?