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"The venues will provide all kinds of services. There's no need for people to bring too many things."

Liu said he was confident the Games will be safe.

【趣味英语】春节小知 世界节日（1）Spring

The security operation in Beijing will directly involve about 80,000 people, including police, professional security guards and volunteers, he said.

"The number will be adjusted according to specific circumstances."

Security became a focus for media attention following a foiled attempt on March 7 to crash a passenger jet flying from Urumqi, capital of the Xinjiang Uygur autonomous region, to Beijing.

Former Public Security Minister Zhou Yongkang said late last year that although the general security situation for the Beijing Olympics is stable, the challenges of "terrorism, separatism and extremism" remain. "The Olympic Games is a big target for terrorism," Zhou said.

International anti-terrorism experts have said China should learn from other countries and proposed information exchange within the international community.

"The large number of athletes and visitors to the Beijing Games and billions of people watching TV will make the event a prime target for terrorists," Boaz Ganor, founder of the Israel-based International Institute for Counter-Terrorism, said in an interview. "Their desire to harm us and their threat against us remain real."