Vaughan Roderick talks to Plaid Cymru MP Ben Lake about rail funding, discusses the Spending Review with Baroness Debbie Wilcox and the Institute of Directors' Richard Selby and reflects on 50 years of Parliament on the radio with former Deputy Speaker Nigel Evans. Plus what does the Hamilton by-election mean for Scotland's parties, and Dai Havard discusses what Merthyr's radical political past tells us about its future.