I don’t care if he taped his sources. If the sources lied, and the author and publisher didn’t do their homework to verify, they are still liable.
http://www.freerepublic.com/focus/f-news/3619315/posts?page=49#49
Good points; lies are liable actions, even if it’s a 1-party consent to taping...
Ping again, to Bannon’s liability still being on the table.