What is the fine-grained topic of the following text: Barra’s long tenure at GM - the Michigan native started as an 18-year-old engineering intern at Pontiac, where her father was a die maker for nearly four decades - might have raised suspicions that she was too much a part of the old regime, which was forced to seek bankruptcy protection and a U.S. government bailout in 2009. Only return the topic.
Barra's long tenure at GM and its implications