I subscribe to a podcast called 99% Invisible... worth a listen to with some really interesting 30-40min episodes.
This weeks one is about the right to roam in the UK
* Episode Download Link (28 MB): https://dts.podtrac.com/redirect.mp3/media.blubrry.com/99percentinvisible/d...
* Show Notes: http://feeds.99percentinvisible.org/~r/99percentinvisible/~3/MnfGkfb5Qkg/
* Episode feed: 99% Invisible - http://feeds.99percentinvisible.org/99percentinvisible