https://www.reuters.com/article/us-tech-antitrust-google/u-s-states-allege-google-unlawfully-preserves-play-store-monopoly-idUSKCN2ED2HN >WASHINGTON/OAKLAND, Calif. (Reuters) -Thirty-seven U.S. state and district attorneys general sued Alphabet Inc's Google on Wednesday, alleging that it bought off competitors and used restrictive contracts to unlawfully maintain a monopoly for its app store on Android phones.