Sirius and XM in antitrust doubts December 13, 2007 FT.com Sirius and XM, the top two US satellite radio providers, faced growing doubts over their ability to secure antitrust clearance for a $13bn merger announced in February Related Posts More than Half 12-17 year olds use social networking BBC Web 2.0 Principles Dawn Chorus About The Author DavySims Producer - Broadcaster - Podcaster - Writer - exBBC Editor - exTEDx Organiser. Author "Podcasting for Journalism Students", "Podcasting for Community Organisations" and "Firsthand Guide to Bled Slovenia" - all available on Amazon. Add a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Notify me of follow-up comments by email. Notify me of new posts by email. This site uses Akismet to reduce spam. Learn how your comment data is processed.