| Thursday 17 September 2230 BST - BBC Two Presented by Gavin Esler President Barack Obama has announced a major overhaul of the US missile defence system in Europe, with bases which had been planned for Poland and the Czech Republic to be scrapped after a review of the threat from Iran. The US decision marks a major foreign policy shift which could impact on its dealings with Europe, Russia and Iran. We'll debate if it's been a good decision by President Obama or not. Also tonight we have a moving film on the 2nd Battalion the Yorkshire Regiment, known as the Green Howards, as they get ready to return to Afghanistan after just 18 months at home. Over the past four months a Newsnight team, including producer Jonathan Bell who is an ex-Green Howard himself, has filmed the troops as they completed training exercises and said their goodbyes to friends and families. Tonight is our first film and we will be following the progress of both the soldiers and their families through a six month tour in Helmand. Read more on that story here. And we'll be considering the fate of the attorney general who is being investigated by immigration officials after employing an illegal worker. Baroness Scotland says she took on Loloahi Tapui - who arrived in the UK from Tonga in 2003 - in good faith and thought she was working in the UK legally. Under laws passed when Baroness Scotland was a Home Office minister, even employers who unknowingly take on illegal workers face a £10,000 fine. Do join Gavin at 10.30pm on BBC Two. | 
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