U.S. Senate panel to hear from Twitter, Facebook next week

WASHINGTON (Reuters) - The Senate intelligence committee said on Wednesday it would hold a hearing next week to look at how social media companies are responding to foreign influence operations, with testimony expected from top executives of Twitter Inc , Facebook Inc and Alphabet Inc .Senators Richard Burr and Mark Warner said in a statement the committee hearing would take place on Sept. 5, with Jack Dorsey, Twitter chief executive, and Sheryl Sandberg, Facebook chief operating officer, in..