Three decades of increasingly strict border controls not only failed to keep undocumented workers out of the United States; it also prevented them from leaving. Continue reading →
Estimated to span more than 800 yards, it contains an elevator, as well as lights and rail and ventilation systems.
From the migrant crisis to Donald Trump, world events can shape the global economy. What are the biggest threats to the world economy?
Two big Mexican volcanoes that are sending mile-high columns of ash and soot into the sky. Continue reading →
An annual census off the Pacific coast turns up a distinctive marine mammal not seen since 2009.
The reptiles died from apparently suffocating and crushing each other while being transported across Mexico.
There's another Alcatraz Island that's less famous than the one in San Francisco but just as friendly to its birds..
Some undiscovered ones may extend far deeper into the Earth than the record of 1.36 miles.
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