![WYPR: The Signal Podcast show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/050/937/small/wypr-the-signal-podcast.jpg)
Summary: This week (10.12.12 & 10.13.12) on The Signal: From blood flow to train commutes, library books to alternative currency, traffic lights to bike paths… a special collection of stories on the theme of ‘circulation.’
Summary: This week (10.12.12 & 10.13.12) on The Signal: From blood flow to train commutes, library books to alternative currency, traffic lights to bike paths… a special collection of stories on the theme of ‘circulation.’