British police arrest second man over London train bomb

By Paul SandleLONDON (Reuters) - British police arrested a second man over the bombing of a London commuter train on Friday that injured 30 people and the security services lowered the threat level for an attack from its highest setting.The 21-year-old man was detained under Britain's terrorism laws in the west London suburb of Hounslow just before midnight on Saturday, London police said in a statement.Police earlier arrested an 18-year-old man in the departure lounge of Dover port in what they