ridiculous delays at Britain's largest airport hub Heathrow. The amount of snow that fell on Heathrow Airport and surroundings was by Canadian standards tiny given the chaos that resulted. Apparently British transport authorities knew that even a small snowfall (such as this was) would result in massive problems. Compare that to the half-metre snowfall in the New York Metropolitan area over the last few days, and one can appreciate just how unprepared the Brits were. Though the huge post-Christmas storm (5th worst ever) on the US Eastern seaboard caused major delays, New York area airports are prepared for just such emergencies, and delays and disruptions were minor compared to the British mess.
So why were the Brits so unprepared? This link has a good explanation of just why government monopolies can ruin your holiday plans.