Polar vortex: What is it and how does it happen?

The deep freeze gripping much of the US has been blamed on a polar vortex. Here's what that means.

from BBC News - World https://bbc.in/2Sex5LW

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Rioter who featured in viral bricking video jailed

Brian Spencer, 40, featured in a viral video of him being hit in the crotch and head by "wayward" bricks during a riot. from BBC...