Presumably you are aware of this, but let me spell it out: The MP from that article hasn't been involved in any violent crime, much less anything resembling terrorism. She's just an active participant of civil society and an opponent of the police state. Of course, unlike actual terrorists, this makes her a real threat.

We have the same thing in Germany, the domestic intelligence services keeping tabs on MPs. Of course Germany has a rich tradition in this kind of behaviour.

I guess a few Irish MPs probably also have a shaky past.

That being said we are on a slippery slop when the State thinks it needs to protect itself from its elected members of parliament.