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PC Lock was freed along with 24 other hostages after a six-day stand-off between members of a dissident Iranian group and the SAS.

Our political dissidents imagine us to be too flamboyant, too outrageous, too inappropriate, too obscene, too freaky and altogether too much to bear.

The senior police officer was seriously injured when he was shot in front of his son by dissident republicans at a sports complex in Omagh, County Tyrone.

Signal has gone from a platform favoured by dissidents to the unofficial whisper network of Washington officialdom.

Those documents revealed a systematic campaign to target and harass political dissidents, shocking a nation and prompting a congressional investigation.