Economy / How can the tax system get us out of this economic mess?
Chuka Umunna MP
Immigration / Is Britain full?
Climate change / Should Britain lead the world in tackling climate change?
Caroline Lucas MP
Chris Huhne MP
Social justice / Will the Big Society defeat poverty?
Lynne Featherstone MP
Therese Coffey MP
Electoral reform / Will electoral and Lords reform change anything?
Dr. Mark Pack
Professor Lord Norton
Technology / Will technology kill bureaucracy?