Bulletin Today | Entertainment | WorkMaria Shriver, a longtime advocate on important social issues for women and the needy, has a new job at 57, one where she plans to focus attention on women’s lives as “providers parents caretakers and caregivers.” She will return to NBC as an “editor at large” to develop  stories related to women’s lives for all of the company’s media platforms. A career journalist who left NBC in 2004 after now-estranged Arnold Schwarzenegger was elected governor of California, Shriver says on …