Raging California wildfire threatens more of Yosemite

(Photo: Jae C. Hong / AP)

A California wildfire that has scorched an area bigger than the size of Chicago near Yosemite National Park was 20 percent contained Tuesday, officials said. But the raging blaze was expected to move farther into the park and threaten a reservoir that provides most of San Francisco’s water.

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(Source: NBCNews.com)