POURING BLOOD: Blood spilled by anti-government protesters is seen on a street in front of the residence of Thai Prime Minister Abhisit Vajjajiva on Mar. 17 in Bangkok, Thailand. A day earlier, thousands of red-shirted protesters dumped plastic bottles of their blood in front of Mr. Abhisit’s office and his political party’s headquarters. They collected about 300 liters from 50,000 protesters, reports said – far short of their aim of 1,000 liters. Sakchai Lalit/AP
CAGED: Members of People for the Ethical Treatment of Animals (PETA) sit in cages in front of a fur exhibition being held at a convention center in Hong Kong on Feb. 25. Known for its high-profile publicity stunts, including posing naked in public squares to protest the wearing of animal fur, nude PETA protesters have frequently confined themselves to cages to protest zoos and circuses. Mike Clarke/AFP/Getty Images/Newscom
RANCID BUTTER: Members of the Sea Shepherd Conservation Society throw butyric acid at a Japanese whaling ship, Yushin Maru, in the Antarctic Ocean in February 2009. The Japanese Institute of Cetacean Research (ICR) said three crew members suffered face and eye injuries from the substance, which Sea Shepherd protesters insisted was only butyric acid, produced from stinking rancid butter, which they often aim at the whalers to try to disrupt the annual whaling hunts. Adam Lau/Sea Shepherd Conservation Society/AP
TEA PARTY: In 1773 a group of American colonists boarded three British ships and tossed all three loads into Boston Harbor. Organizer Samuel Adams famously said: "The liberties of our country, the freedom of our civil constitution, are worth defending against all hazards." In this 2009 reenactment by today’s Tea Party activists, political protesters toss fake tea into the water at Christopher Columbus Park in Boston. Newscom/FILE
CROSS-LEGGED SIT INS: In most countries, protesters stand, march, or jump. In South Korea, they sit with legs crossed. Some 5,000 people stage a sit-in rally in central Seoul, South Korea, in April 2007 to protest the government's conclusion of a bilateral free trade agreement with the United States earlier that month. Newscom/FILE
TREE PROTESTS: A protester sits high above the ground in a Coast Live Oak, which is part of an endangered grove in front of Memorial Stadium at University of California at Berkeley in December 2006. After 21 months of occupying the contested campus grove, a court injunction to stop the construction of a $124 million athletic center was lifted and the four protesters descended and were arrested. The oaks were later felled. Newscom/FILE
CODE PINK: At the White House in December 2008, Code Pink founder Medea Benjamin throws a shoe at a person representing former President George W. Bush during a demonstration in solidarity with the Iraqi journalist who threw his shoes at Bush and with tens of thousands of Iraqis killed in the war. Roger L. Wollenberg/UPI/Newscom/FILE
NAKED CALENDARS: A resident of Leader, Saskatchewan, poses naked in a canoe on the Canadian town's main road to show how bad the potholes are. Fed up with poorly paved streets, a group of individuals made a calendar in 2006 of themselves posing nude inside local roads' potholes. "It's been a constant problem,” one resident said. “We've raised it with the [provincial] government every opportunity we had ... all to no avail, frankly.” Newscom/FILE
WATERLOGGED: Greenpeace activists display a banner underwater during a protest at the Great Barrier Reef in Australia in July 2008. Dr. Charlie Veron, formerly the chief scientist for the Australian Institute of Marine Science, joined divers to highlight the combined threats to the reefs future coming from coal fired power stations and shale oil exploitation, according to Greenpeace. "By mid-century, the corals of the Great Barrier Reef will have been replaced by bacterial slime and the biodiversity we now see will have been gone forever," he said. Dean Miller/Greenpeace/AFP/Getty Images/Newscom/FILE
AVATAR: Protesters dressed as characters from the movie 'Avatar' demonstrate against the Israeli separation barrier in the West Bank village of Bilin on Feb. 12. Comparing themselves to the alien Na'vi people who are pushed from their land in the Hollywood blockbuster, the Palestinian protestors said they too are being oppressed. “We are here fighting the sky people, we are here fighting for our land,” one protester said. Darren Whiteside/Reuters
Hong Kong media, blanketed with images of masses of unarmed students fending off pepper spray with umbrellas, contrasts sharply with mainland China’s virtual blackout of news about the territory’s pro-democracy protests.
ByDidi Tang, Associated Press
China's government has cut off news about Hong Kong's pro-democracy protests to the rest of the country, a clampdown so thorough that no image of the rallies has appeared in state-controlled media, and at least one man has been detained for reposting accounts of the events.