Frank Gardner: Nairobi-style terror attack in UK?

The BBC's security correspondent reviewed the terror attacks in Nairobi - with shootings, throwing of grenades, and taking hostages - and pondered if such an attack could happen in a British shopping centre.

Earlier this week, David Cameron chaired an emergency meeting on the Kenyan attack, which included British victims.

Frank Gardner looked at the lessons from Kenya - and also the changing political situation in Iran which is reaching out to the US - and how they could affect the UK and western nations.

Watch the whole show on BBC iPlayer

More from the This Week: Watch full programmes from the last 12 months seven days via BBC iPlayer; "like" us on Facebook page or "follow" us on Twitter