The Daily Scoop: Delta walks back some changes to Sky Medallion program. Is it too late?

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Delta has walked back some — but not all — of the unpopular changes the airline made to its loyalty program last month. 
In a letter to customers, CEO Ed Bastian said he had read hundreds of emails from disappointed customers. “I appreciate your opinions and understand your disappointment. Your voice matters, and we are listening,” the statement read. 
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