Universal Credit: Iain Duncan Smith and welfare changes
10 March 2014 Last updated at 11:22 GMT
The work and pensions secretary has started the biggest overhaul of the UK's welfare state since it was brought in.
Iain Duncan Smith is on a moral mission to reverse the previous welfare system that he believed did not create enough incentive for people to work.
In a Sunday Politics film, Adam Fleming examines whether the changes are working, and how they are being judged by supporters and critics.