Hiding in Plain View: Could Steganography be a Terrorist Tool?

The events of September 11, 2001 catapulted awareness of terrorism to the forefront of every mind in every civilized culture in the world. They have also raised interest in the ways that terrorists may have communicated and planed these events. Can steganography be used as a terrorist tool? Whether these techniques have been used yet is still open to debate, but this paper discusses the opportunity for terrorists to add steganography to their tool kit is undeniably at hand.