The Latest: UK imposes tough new restrictions...
LONDON — Tough new coronavirus restrictions have begun in the U.K. with Scotland and Northern Ireland under tighter measures to try to halt a new variant of the virus that is believed to spread more quickly. Measures that were relaxed for Christmas day in Wales have also been re-imposed. The number of people under the country’s top level of restrictions — Tier 4 — increased by 6 million on Saturday to 24 million people, around 43% of Britain’s population....