Terrorism was the act of committing destructive acts with the purpose of spreading fear for political or religious reasons, participating individuals were known as terrorists.
Several terrorist groups emerged in a period of political tension in 2002 brought about by the New Britannia Party. They included the United Front, Black Lightning and White Wolves. (AUDIO: The Fearmonger)
MI5 suspected that I2 was a front for the terrorist organisation Little Brothers. (PROSE: System Shock)
Angvian terrorists tried to disrupt a peace conference on Achilles 4 between the Angvians and Gholos. However, the real peace conference was happening on Dark Space 8. (AUDIO: Bang-Bang-a-Boom!)
V'rell was a Monan delegate to a major temporal summit on Gallifrey. Secretly he was a terrorist allied to the Free Time movement. (AUDIO: Square One)
A Tarenist cell known as the Church of Taren Capel claimed responsibility for the terrorist attacks that occurred during a 3 month period in Kaldor City. (AUDIO: Hidden Persuaders)
In the 21st century, a terrorist group known as Al-Qa'ida attempted to get nuclear weapons. (PROSE: The Nuclear Option)