THE atrocity in Madrid highlights the vulnerability of all nations to attacks by terrorists.

There can be no absolute protection against ruthless, determined and evil fanatics.

While we must increase both security levels and vigilance, we must not react to Thursday's outrage to such an extent that it transforms our daily lives and routines.

To do so would represent a resounding victory for terrorism.

As a nation at the forefront of the so-called war on terror spearheaded by the United States, Britain has to expect to be a target for extremists.

Even if it transpires the Madrid bombs were planted by Eta, we must not under-estimate the real threat to Britain from al-Qaida and other such groups.

Spain has demonstrated the spirit in which to confront terrorism. In the reaction to the worst terrorist atrocity on mainland Europe, Spain has done much more than simply grieve for 200 lives lost.

Spontaneously, they took to the streets in their millions in a hugely impressive act of defiance. The uncompromising message sent out was that terrorism will never succeed.

That message was reinforced yesterday when the country went to the polls to elect a new government.

It is regrettable that the message has been somewhat weakened by the focus on the claims and counter-claims of who was responsible for the Madrid atrocity.

In these chillingly dangerous times it is imperative that democracy is not only preserved but promoted. For it is democracy that the nationalist and religious fanatics seek to deny us.

We must cherish freedom. It is the best weapon at our disposal to combat terrorism.