Now, Unsurprisingly, IDS Is On The Ball.

'A new generation will be condemned to a life on benefits without tougher measures to stem the flow of migrant workers, Iain Duncan Smith is to warn today. The Work and Pensions Secretary will lift the lid on simmering Cabinet tensions over immigration, telling David Cameron that expensive back-to-work schemes will fail without strict controls on incomers.' (Mail.) 

After all the posturing by trade union leaders in recent weeks - how many of these have stated the obvious? - Why is it left to a tory to reveal the biggest threat to the members of most unions in the UK?
Ah. It goes against their socialist grain, that's why!