Dow falls 700 points as new coronavirus variant threatens to derail global economic recovery

Stocks slid in post-Thanksgiving trade Friday.AP Photo/Richard Drew
Dow industrials tumbled 700 points as a new coronavirus variant spreads from South Africa. 
Travel restrictions are being put in place in the EU, UK, Japan and other places worldwide. 
The WHO says the B.1.1.529 strain has a "large number of mutations."
US stocks sank Friday as investors returning from the Thanksgiving holiday worried about the economic recovery because of rapidly rising cases of COVID from a new strai