US hostage Kassig's mother appeals to IS leader

The mother of a US hostage has appealed to the leader of the Islamic State (IS) militants to get in touch with her. Paula Kassig posted a letter on Twitter, for Abu Bakr Al Baghdadi, asking how he can be reached. via Pocket http://www.bbc.co.uk/news/world-us-canada-29557072#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa