Competition and Innovation in a Hostile Environment: How Jabhat Al-Nusra and Islamic State Moved to Twitter in 2013–2014 opencrim November 5, 2018 Competition and Innovation in a Hostile Environment: How Jabhat Al-Nusra and Islamic State Moved to Twitter in 2013–20142018-11-05T11:56:46+00:00 Studies in Conflict & Terrorism . Go to Source Author: Gunnar J. Weimann