https://www.reuters.com/article/us-usa-trump-russia-twitter/twitter-suspends-russia-linked-accounts-but-u-s-senator-says-response-inadequate-idUSKCN1C331G >Twitter said on Thursday it had suspended about 200 Russian-linked accounts as it probes online efforts to meddle with the 2016 U.S. election, but an influential Democratic senator slammed its steps as insufficient.