I've been thinking about betraying my country for ideological reasons, but I can't think to whom, or how to go about it. As far as I'm aware, I possess no information that shared with a foreign power could benefit mankind and help to ensure world peace - I doubt the Iranians would be interested in my cocktail recipes. The age of betrayal is over. What little information not already passed from state to state, ally to enemy, to the hands of anybody seeking to cause a bit of trouble, is almost certainly available on the internet. The days of microfilm, writing in lemon juice and Christine Keeler are long gone.
In the days when we had a few secrets worth protecting, there were plenty of conscientious idealists willing to spill the beans. The day after the first successful atomic bomb test, Dr Klaus Fuchs of the British contingent drove to Santa Fe and presented his Soviet contact with the whole shebang. Like his fellow traitor/preserver of mankind Dr Allan Nunn May, he believed that the atomic secret was too great for one side to possess.
It is unlikely that there could be another 1930s-style Cambridge spy ring. Booze, buggery and Bolshevism probably wouldn't play too well with al-Qaida, and due to a slightly different fashion sense from the infidels, they'd be easier to spot. MI5 director general Eliza Manningham-Buller suddenly growing a beard and praying five times a day would not go unnoticed.
So unless I've forgotten something, there's very little I can do to bring the country to its knees, which is just as well I suppose - it's quite nice here today.