Open water swimming on top-5 list over most vulnerable Olympic events

London 2012 organizers point out open water swimming as one of the five Olympic venues most vulnerable to disruption by lone pranksters, organized protests or terrorists, and will therefore will rely on thousand of trained stewards lining the course, on top of thousands of Metropolitan Police and military directly involved in Olympic security. The stewards will stand around 25 yards apart on the edges of the race courses, facing the spectators to monitor the crowd for suspicious behavior, and there will even be high security surrounding the Serpentine several weeks before competition to prevent poisoning of the water. Read The Telegraph via GoSwim on Twitter.