Reuters: Firefighters determined to keep a massive blaze from raging into the heart of California's Yosemite National Park have shut down half of its main east-west corridor, just days before a holiday weekend marking the end of the peak summer tourist season.
A long stretch of Tioga Road through the western half of the park was closed on Wednesday as fire crews tightened their grip on the blaze, extending containment lines around 30 percent of the wildfire's perimeter by the end of its 12th day.
The...