(8) Trampoline (2) Calendar Medal table The top ten listed NOCs by number of gold medals are listed below with the host nation, Mexico, being highlighted. The design of the medals is intended to represent the heart of the agave plant and thus represent the Jalisco region. Closing ceremony The closing ceremony of the games took place on October 30, 2011, beginning at 8:00 pm CST (02:00 UTC, October 31) at Omnilife Stadium. As per tradition, the Pan American Sports Organization flag was handed over to the mayor of the next host city, Rob Ford of Toronto. Concerns and controversies Security Guadalajara, due to the ongoing Mexican Drug War, has seen escalating violence. Some countries, including the United States and Canada, expressed concerns about the safety and security of the region. Scott Backmun of the United States Olympic Committee (USOC) raised concerns about the city's ability to host the games in light of the drug war. Due to the increased safety issues the USOC had its own security plan for the games. During a meeting of the USOC in March 2011, chief security officer Larry Buendorf gave a report to the rest of the committee in which he said, "We’re going to prepare for Guadalajara like we would any other Games. A lot of that is just preparing your athletes for the individual environments that they’re going into. Everybody is quite aware of the violence that has happened. We’re obviously concerned about it, and at the end of the day, I think we have a good security plan in place to try to protect our athletes". After grenades were thrown near a nightclub entrance in two separate incidents in February 2011, organizers said they were making security a priority and arranged for police and members of the armed forces to patrol in Guadalajara throughout the games. Athletes' village The athletes' village was behind schedule for the entire time it was under construction, and in May 2011, about five months before the start of the games, the courts ordered work on the village to halt when residents of Zapopan said the construction would adversely affect their drinking water supply. Carlos Andrade Garin, the director of the organizing committee, said even a short delay in construction would mean the games would have to be canceled. According to Garin, "we have some crabs [people who don't want to go forward] who don't like