LONDON, England (CNN) -- Human rights and freedom of the press in China, the detention of terrorist suspects by the United States and Russia's treatment of political dissent are the focus of scrutiny in Amnesty International's annual report, released Wednesday, which looks at the state of human rights around the world.



Amnesty International  protestors outside the US Supreme Court in January dressed as Guantanamo Bay detainees.



The 398-page report comes 60 years after the United Nations adopted the Universal Declaration of Human Rights, and Amnesty says governments still need to act on their promises.



"The biggest threat to the future of human rights is the absence of a shared vision and collective leadership," the organization said in a statement.



Irene Khan, Amnesty's secretary-general, said that in particular, "the human-rights flash points in Darfur, Zimbabwe, Gaza, Iraq and Myanmar demand immediate attention."



The report, the group said, "reveals a world riven by inequality, scarred by discrimination and distorted by political repression."



According to its count, people are tortured or subject to other ill treatment in at least 81 countries, face unfair trials in at least 54 countries and are not allowed to express themselves freely in at least 77 countries.



Of the 150 countries and regions listed in the report, Amnesty paid particular attention to China, the host of this summer's Olympic Games.



The group said growing numbers of human rights activists were imprisoned or harassed in China in 2007, with ethnic and religious minorities -- including Tibetans, Falun Gong practitioners and Christians -- repressed or persecuted.



Death penalty statistics in China are difficult to assess, Amnesty said, but based on public reports, the group estimated that at least 470 people were executed in 2007.



Amnesty also noted the repression of free speech in China and said censorship of the Internet and other media intensified last year.



"The Chinese authorities maintained efforts to tightly control the flow of information," the report said. "They decided what topics and news stories could be published, and media outlets were sometimes required to respond within minutes to government directives. The authorities continued to block Web sites and to filter Internet content based on specified words and topics."



Around 30 journalists and at least 50 others are known to be in prison for posting their views online, Amnesty said.



Amnesty also criticized the death penalty in the United States, where 42 people were executed last year. It noted New Jersey's decision in December to abolish the death penalty made it the first U.S. state in more than 40 years to do away with executions.



As it has in previous annual reports, Amnesty criticized the detention of hundreds of foreign nationals at the U.S. naval base at Guantanamo Bay, Cuba.



"The USA must close Guantanamo detention camp and secret detention centers, prosecute the detainees under fair trial standards or release them, and unequivocally reject the use of torture and ill-treatment," Amnesty said.



The group noted that Guantanamo detainees are held indefinitely, most of them without charge and without recourse to U.S. courts. Most detainees there are held in isolation in maximum-security facilities, heightening concerns for their physical and mental health, Amnesty said.



In fact, more is written on the United States than any other country listed in the report. Asked about that at a press conference Tuesday, Khan said, "We certainly devote a lot of time to Sudan, to China, to Zimbabwe and other countries. But we look to the U.S. to provide leadership around the world. Governments around the world look to the United States as a role model for their own behavior."



In a lengthy section on Iraq, Amnesty noted that thousands of civilians, including children, were killed or injured in ongoing sectarian violence during 2007.



"All sides involved in the fighting committed gross human rights violations, some of which amounted to war crimes and crimes against humanity," the report said.



Abductions, torture and murder, with bodies left in the street, occur daily, and the violence has caused 2 million Iraqis to flee to Syria,
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