Two men have been arrested near Heathrow Airport as a "precautionary measure" under anti-terrorist legislation, police have said. The men were arrested in Hounslow and have been taken to Paddington Green police station in central London for questioning, a Scotland Yard spokesman said. In a separate development, part of Gatwick Airport's North Terminal has been closed and evacuated because of a security alert. http://news.bbc.co.uk/1/hi/uk_politics/2757143.stm