 Reuters - A man in his 60s has been arrested in connection with an investigation linked to the discovery of traces of uranium found in a cargo package at Londons Heathrow Airport, the UK Metropolitan Police said on Sunday. The man was arrested on suspicion of a terror offence on Saturday and was released on bail as part of the investigation, the Police said. A very small quantity of uranium was detected in a package that arrived at Heathrow Airport on Dec. 29. Richard Smith, head of London po... 