基本信息
london — in the months and years leading up to the london olympics, there were some serious concerns about security. security, in fact, was a core element of the preparations over a period of seven years. but the games have been going on for more than two weeks - hundreds of events and millions of spectators in dozens of locations - so far with no serious incidents.
some days at the olympic park there were so many people it was difficult to move around. that, and the many other venues around london and
