Scotland's largest airport grounded all flights Saturday after two men rammed a flaming vehicle into the main terminal. This comes just one day after authorities thwarted two potential bombings in London.
British officials raised the terror alert to "critical" - the highest possible level - and the Bush administration announced plans to increase security at airports and on mass transit.
Two suspectswere arrested at the Glasgow Airport. One, his body engulfed in flames as police pulled him from the still-burning vehicle, was hospitalized.