A spokesman for airports operator BAA said: "Security at our airports remains at a high level and we remain vigilant at all times."
That makes me laugh. Airport (and railway) terminals are as vulnerable as ever. The truth is that the authorities can do and say what they wish but it will NEVER stop a determined and suicidal group of extremists.
You just have to live life normally and hope that you're not in the wrong place at the wrong time. A bit like an RTA (Road Traffic Accident).