Terrorism

Are the Welsh nationalist extremists guilty of terrorism? Of inciting racial hatred even against born and bred Welsh people who choose to speak English?

Are Plaid Cymru supporters of such extremism?

Why don't they want to integrate with the rest of the planet?

There are a number of UK-based extremist groups motivated by domestic causes other than the Northern Ireland situation.
None of these poses a significant threat at the present time but several either historically had a limited terrorist capability or currently aspire to mount terrorist attacks against targets in the UK.
Some extremist groups also have a subversive agenda, seeking to undermine parliamentary democracy or the British economy.
At various times in the recent past, groups that have fallen into this category have included violent Scottish and Welsh nationalists, right- and left-wing extremists, animal rights extremists and other militant single-issue protestors.
For the most part these groups pose a threat to public order, but not to national security, and their activities are generally investigated by the police, not the Security Service.
In 2004, the Association of Chief Police Officers (ACPO) established the National Extremism Tactical Coordination Unit (NETCU) (new window) as part of the national policing response to domestic extremism