Iran’s repeated threats to avenge the reported assassination of its chief nuclear scientist, Mohsen Fakhrizadeh, who was shot dead outside Tehran in November, raise the likelihood of Iranian armed action against Israeli targets. The threats also serve as a reminder that Iran has a long history of both sponsoring terrorism and actively engaging in it with its own personnel, and that it has spent decades building a global, highly active Shiite terror network.
Source: Iran’s Global Terror Network Lurks Behind Its Threats of Vengeance