Samsung reporting record profit for its third quarter, but the news was somewhat overshadowed by a major shakeup in its executive ranks. The company dismissed the heads of its components, consumer electronics, and mobile divisions and said it would separate its CEO and chairman roles. Plus in testimony prepared for their Capitol Hill hearings on Wednesday, tech giants disclose that the impact of the Russian-backed ads bought during last year's election may have been much bigger than previously thought. Facebook, for example, said 126 million people may have seen the content. And Apple reportedly is considering ditching Qualcomm as a supplier for its iPads and iPhones, and Amazon Studios is looking to expand, even amid changes in its top ranks.