Google Doodle honors Yosemite - a national park you can't visit

Tuesday's Google Doodle honors Yosemite National Park. But the park remains closed due to the federal government shutdown.

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US begins government shutdown as budget deadline passes

The US government has begun a partial shutdown after the two houses of Congress failed to agree a new budget.

The Republican-led House of Representatives insisted on delaying President Barack Obama's healthcare reform - dubbed Obamacare - as a condition for passing a bill.

More than 700,000 federal employees face unpaid leave with no guarantee of back pay once the deadlock is over.

It is the first shutdown in 17 years and the dollar fell early on Tuesday.

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