Protesters wearing tinfoil hats take part in a demonstration against controversial Anti-Counterfeiting Trade Agreement (ACTA) as part of an international day of action against the increasingly-contested accord, at the Freedom Square in central Tallinn on February 11, 2012. Thousands of people demontrated despite freezing temperature, many of them were wearing tinfoil hats, after Estonian Prime Minister Andrus Ansip came under fire on February 9 after suggesting that critics of the controversial Anti-Counterfeiting Trade Agreement must be on drugs, adding that 'It might be helpful to put tinfoil in your hat,' referring to the belief of some UFO-watchers that it wards off alien mind-control. ACTA's aim is to beef up international standards for intellectual property protection, for example by doing more to fight counterfeit medicine and other goods. But it is ACTA's potential role in cyberspace that has caused outcry online and on the streets. AFP PHOTO / RAIGO PAJULA ***ESTONIA OUT*** (Photo credit should read RAIGO PAJULA/AFP/Getty Images)
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AFP RAIGO PAJULA