19:45The World TonightThe Prime Ministerial DebatesEpisode 2: International AffairsBBC Radio 4 Duration: 3 hours Thu 22nd Apr 2010, 19:45 on BBC Radio 4 FMAvailable for over a yearListen nowThe leaders of the three largest UK parties debate international affairs. Show more GenresFactualPoliticsBrandThe World TonightSeriesThe World Tonight: The Prime Ministerial Debates Source: BBC Online