A lot has happened since General Motors CEO Mary Barra first appeared before lawmakers looking into the massive GM ignition switch recall tied to at least 13 deaths. The company has admitted a culture of incompetence while denying a cover-up, recalled another 3 million vehicles, and faces concerns that the total death count may be significantly higher than 13. So this morning’s hearing before a Congressional subcommittee was less friendly than Barra’s previous visit. [More]