Flames Eminent News Today

The information may give the investigators in the united states a better picture of who is behind that facebook ad buys. and how those ads may have influenced the 2016 presidential election. back to our top story this hour, the attack in london. the threat level across the united king dodom has been rais to critical. cnn correspondent brian todd has this report on the investigation. >> reporter: flames eminent from a crudely built bomb placed by the doorway inside a train in londons undergroun...