https://www.reuters.com/article/us-usa-trump-russia-facebook/facebook-twitter-lawyers-to-testify-in-congress-on-russia-meddling-idUSKBN1CO23R >Facebook Inc and Twitter Inc will send their general counsels to testify on Nov. 1 before two Congressional panels investigating possible Russian meddling in the 2016 U.S. election, the companies said on Thursday.