Sale of Controversial Security Firm Xe Securities Imminent Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email A helicopter of the US Blackwater security firm hovers over the site where a car bomb exploded in central Baghdad, 23 Oct 2005. ( (Marwan Naamani/AFP/Getty Images) ) Produced by Sitara Nieves Produced by PRI and WNYC