The UK Independence Party has been in the news a lot lately: two of its supporters in Rotherham had their foster children taken away from them because of their UKIP affiliation; Conservative Party deputy chairman Michael Fabricant suggested the Tories might be wise to enter into a pact with UKIP at the 2015 general election; and rumours surfaced of a possible defection of several Conservative MPs to the anti-EU party. And then, of course, there were three Westminster by-elections in which UKIP rattled the main parties. This week, Rosie Goldsmith profiles UKIP's leader Nigel Farage.