Ciaran Martin comments on Scotland's first minister's plans for a new referendum on independence and on constitutional matters (05:00 on clock).

Ciaran Martin comments on Scotland's first minister's plans for a new referendum on independence and on the Supreme Court ruling (05:00 on clock).

Ciaran Martin, who was lead official negotiator ahead of the 2014 independence referendum, offers some reflections.

Ciaran Martin explains the cybersecurity risks to the UK from the situation between Ukraine and Russia.

Ciaran Martin discusses cyber aspects of the hostilities between Russia and Ukraine (2:48 on clock).