prepares for the third anniversary of her inauguration on thursday, crickets have held protests in downtown seoul. they're unhappy with the president and his stands on freedom of expression. >> in front of landmarks, a ghostly gathering. this hollow graphic protest, or as it's organizers put it in commission papers, cultura cull evencultural event. >> the protests have continuously retreated in south korea. the situation is getting worse. people can't even chant a slogan on the street. so through this hologram protest we wanted to call for the guarantee of freedom of peaceful assembly and protest. >> freedom of expression has suffered in the three years since conservative president park came to office. >> the reason why they chose this location is because the location on route to the presidential house has been off limits. the bus blockades used to insure that last november. dozens were injured. one man knocked down by a waterjet remains in a coma. but critics point to subtle measures. they were ordered by the police to remove the work critical of the president with a warning of defamation law. t

prepares to mark a third anniversary of her inauguration on thursday, critics have held a protest in downtown seoulre unhappy about her stance on freedom of expression. but they had to be there without really being there. >> reporter: in front of one of south korea's famous landmarks, a goesly gathering. this holographic protest, or rather a cultural event, was filmed against a green screen and transposed to this busy intersection. >> translator: the rights of assembly of protest have continuously retreated in south kor korea. the situation is getting worse. so we wanted to call for the guarantee of freedom of peaceful assembly and protest. >> reporter: amnesty is one of many groups that says freedom of expression has suffered in the three years since the president came to office. the reason amnesty has chosen this location, because recent large-scale protests involving live people have been tended much further away. this location has been well and truly off limits. the bus blockades used to ensure that were tested last november. unions protesting against labor reforms and the introduction of state

critics have held a protest in downtown seoul. they're unhappy about her stance on freedom of expression. but it's a demonstration in a no-protest zone, they had to be there without being there. >> in front of one of south korea's most famous landmark as ghostly gathering. this holographic protest rather as it's organizers put it in the commission papers cultural event was filmed in front of a green screen and then shown in front of the palace. >> the rights of assembly and protest have continuously retreated in south korea, the ways is getting worse. people can't even chant a slo slogan on the street. so through this process we wanted to call for the freedom of preysful assembly and protests. >> freedom of expression has suffered under the three years of president park came to office. the reason why they have chosen this location is protest involving real life people, this location is on route to the president's house, has been off limits. unions protesting against labor reforms and the introduction of state-offered history books

to mark the third anniversary of her inauguration on thursday, critics have held a protest in downtown seouley had to be there without really being there. harry fawcett explains. >> reporter: in front of one of south korea's most famous landmarks, a ghostly gathering. this holographic protest, or cultural event, was filmed against a green screen and transposed to this busy intersection. >> translator: the rights of assembly and protest have continuously retreated in south korea. the situation is getting worse. people can't even chant a slogan on the street, so through this hologram protest, we wanted to call for the guarantee of freedom of peaceful assembly, and protest. >> reporter: amnesty is one of many groups that says freedom of expression has suffered in the three years since the conservative president came to office. the reason amnesty has chosen this location is because cent large-scale protests involving real live people have been held hundreds of meters back. this location en route to the presidential house has been well and truly off elements. the bus blockades were tested last no

>> large scale protests involving real live people have been attended, hundreds of people in downtown seoul. this location en route to the presidential blue house has been off limits. >> the bus blockades used to assure that were protested last december. dozens were injured, one man knocked down by a water jet remains in a coma. critics also point to more subtle measures. here we filmed away artist being threatened by police. the police maintain that they are merely minimizing inconvenience and ensuring safety, pointing to much lower injury rates since they introduce the bus barricades and water cannon. the government said strict security laws are needed for a country still technically at war with north korea. internal digits are sharp. opposition lawmakers continued a marathon filibuster effort which they say will give too much power for the intelligence service. >> you might be seeing those types of protests, as well. >>> still ahead, what could become a revolution on how we grow our food. >> in california, an ancient form of farming could be the farm of the future. i'll explain more in a