These links may not help with this project, but if you're interested in foreign policy, you may want to give them a listen.
The global magazine of news and ideas Foreignpolicy.com
United Nations releases 'UN Radio' podcasts. There are video and audio versions in many languages:
The Council on Foreign Relations (CFR) runs a few podcasts. Their 'World Next Week' edition is similar to The Economist's 'The Week Ahead'.
NPR has one called Foreign Dispatch that runs weekly:
From CNN, Fareed Zakaria GPS is available in video or audio editions:
BBC World Service does a 'Daily News' podcast, among others:
Al Jazeera has a couple, one with Riz Khan and another monthly edition called 'Listening Post'
FT's Gideon Rachmann does a 'World Weekly' podcast: