Sacramento -- Gov. Arnold Schwarzenegger, as part of a plan costing at least $3.6 billion to alleviate overcrowding in California prisons, is proposing to free up space by contracting with other states to house 5,000 incarcerated illegal immigrants. A detailed outline of the governor's prison agenda, released Friday, also says the corrections department needs to add more than 51,000 beds -- the equivalent of at least 10 large prisons -- during the next 15 years and offers new insights into the stresses put on a 33-prison system that is operating at nearly 200 percent capacity. One new proposal is a...