The leaders of the United Kingdom's three biggest political parties on Thursday clashed on the question of banking reform, as the bulk of snap polls continued to show no single party will take a majority of the seats in parliament after the 6 May election.

In the second of three televised debates between the three leaders, Nick Clegg, the head of the Liberal Democrats, voiced a need to split banks into their casino and utility functions.

In his speech in Edinburgh on 20 October last year, Mervyn