http://www.tvo.org/podcasts/bi/audio/BI_Lecture_20030427_883512_NFerguson_0x0_40k.mp3 Niall Ferguson on his book Empire http://feeds.tvo.org/~r/tvobigideas/~3/t9UkXwzw2UQ/BI_Lecture_20030427_883512_NFerguson_0x0_40k.mp3 2009-08-08 http://www.tvo.org/podcasts/bi/images/BIAlbumArt.jpg