Ed Miliband, the latest Labour leadership contender to grace the Politics Weekly studio, explains why he thinks that Labour can capitalise on disillusionment among Liberal Democrat voters – andadmits his party must face up to its own mistakes.
Miliband also tackles issues including funding for nuclear weapons, his opposition to the Iraq war, and his backing from the Unite union, whose members have just backed strike action at some of Britain's biggest airports.
David Cameron used a quiet news week in Britain to launch an attack on people who commit benefit fraud. He says he'll use the services of credit rating agencies in a crackdown. Nick Cohen says he doesn't disagree with the idea in theory, but is sceptical about the amount of money it could raise.
Also this week, as Sayeeda Warsi and Chris Huhne host a joint Lib-Con press conference, we ask whether the coalition is turning out to be more then a marriage of convenience.
