Considering that full scale security/military forces are overseeing and shadowing every aspect of the Athens Olympics,maybe the next Olympics could or should be held at a big American,Maximum Security "Prison Complex"?
Think of it - all the high-tech security infrastructures are already in place! Plus theres plenty of barred windows,reinforced steel doors,guard towers and razor wire perimeters to give any Olympics Committee the type of security they're looking for.
Also a U.S. Super Max Prison would provide,by its very architecture and menacing tone,Olympians with that authentic,high visibility,police saturation they've come to expect and appreciate at all modern Olympic Games.
Another benefit is that the Olympic Athletes could be housed, during the course of the event, in the Super Max's "Solitary Confinement" cells where their safety could almost be guaranteed and also their confinement in these cells,would help authorities monitor them more closely especially for illegal drug testing etc..
In conclusion American style "Super Max Prison" environments are the state of the art "Colliseums" for today's Olympic Games. But its kind of amazing that the government authorities who build and run America's Prison's haven't already organized Olympic style games in these institutions,seeing how fitting they are to that very purpose! (Then again in a sick way maybe they have?)