Facebook Whistleblower Sends a Message -- and the Company Responds. Plus: A New Record for Tesla, Ford Sales Slump in September, and the COVID Pill Effect: Merck Extends Rally While Moderna Continues to Decline.

Squawk on the Street - Facebook Whistleblower Sends a Message -- and the Company Responds. Plus: A New Record for Tesla, Ford Sales Slump in September, and the COVID Pill Effect: Merck Extends Rally While Moderna Continues to Decline.