Newcastle University's Conor O'Neill, who carried out research into the effects of a bomb blast inside a train carriage, said using special materials could prevent shrapnel injuring passengers.
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Arthur Simpson-Kent, 48, has been detained by Metropolitan Police officers at Heathrow Airport after arriving on a flight from Ghana.
A number of flood alerts are in place for the tidal stretch of the River Thames after it burst its banks yesterday.
Teaching assistant Kevin Wilson who brutally attacked his heavily pregnant ex-girlfriend killing his unborn son, has been jailed for life.