Former Gov. Arnold Schwarzenegger and his wife, Maria Shriver, have separated, with Shriver moving out of their Brentwood mansion while the two determine the next step in their 25-year marriage. Shriver has been residing apart from the actor-turned-politician for the last few weeks. The former first couple confirmed the separation in a joint statement released Monday after questions were raised by The Times. "This has been a time of great personal and professional transition for each of us," the statement read. "After a great deal of thought, reflection, discussion and prayer, we came to this decision together. At this time,...