How many athletes and their supporters are do we predict are going to "miss" their return flight home and disappear into the night? Does the government have any system in place to vet potential athletes? Although Eric the Eel was midly amusing, how many so called athletes are going to compete in events they're useless at as a way to emigrate? (btw. I am not accusing Eric the Eel of illigal immigration, but he was useless)
What about all those pesky foreign visitors?
None of them will be attaining any "olympic standards" presumably and there'll be a lot more of them.
What ARE we going to do?
Ichkeria, thanks for your sarcastic attempt at an answer, but I really think this a serious issue. How can the government be sure that people aren't going to abuse the British hospitality and remain illegally> What measures will they have in place?