Here are five things you must know for Tuesday, Dec. 26:
"The question is though, 'Which one is it going to hit first?'" Hosp told CNBC.
Sales, excluding automobiles, rose 4.9% from Nov. 1 through Christmas Eve, compared with a 3.7% gain in the same period last year, according to the Mastercard unit, The Wall Street Journal reported. E-commerce continued to drive the gains, rising 18.1%.
4. -- Elon Musk's massive backup battery installed in South Australia already has paid dividends, according to reports.
When the coal-fired Loy Yang power plant in Victoria failed last week and led to a power cut, the battery kicked in and delivered as much as 100 megawatts of juice into the national electricity grid in just 140 milliseconds.
"That's a record and the national operators were shocked at how quickly and efficiently the battery was able to deliver this type of energy into the market," State Energy Minister Tom Koutsantonis told 5AA radio.
An airline spokeswoman told the Associated Press Monday that its internal systems show the passenger, Jean-Marie Simon, canceled her Dec. 18 seat from Houston to Washington, D.C. after a weather delay.
United said it upgraded Jackson Lee automatically and not because she was a member of Congress. The congresswoman saids in a statement that she didn't ask for anything "exceptional or out of the ordinary."
This has been updated from 5:42 a.m. ET.
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