The Government has warned of "imminent" terrorist attacks after a Jeep was rammed into Glasgow airport and burst into flames. The jeep burst into flamesThe UK is now on "critical" alert - its highest terror threat level. Police say the attack is linked to the two car bombs that were found in the heart of London. It has also been revealed that one of the two suspects arrested in Scotland was wearing a "suspicious device". Officers would not say whether it was a suicide belt. Gordon Brown has warned the British people to be vigilant and told them to remain...