Given the task definition and input, reply with output. In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

Image caption Facebook announced in May that it would ban videos showing graphic violence while it carried out a review 
  
 Facebook is allowing videos showing people being decapitated to be posted and shared on its site once again. 
  
 The social network had introduced a temporary ban in May following complaints that the clips could cause long-term psychological damage. 
  
 The US firm confirmed it now believed its users should be free to watch and condemn such videos. It added it was, however, considering adding warnings. 
  
 One suicide prevention charity condemned the move. 
  
 "It only takes seconds of exposure to such graphic material to leave a permanent trace - particularly in a young person's mind," said Dr Arthur Cassidy, a former psychologist who runs a branch of the Yellow Ribbon Program in Northern Ireland. 
  
 "The more graphic and colourful the material is, the more psychologically destructive it becomes." 
  
 Two of the firm's official safety advisers have also criticised the decision. 
  
 Facebook allows anyone aged 13 and above to be a member. 
  
 Its terms and conditions now state that it will remove photos or videos that "glorify violence" in addition to other banned material, including a woman's "fully exposed breast". 
  
 New rules 
  
 The BBC was alerted to Facebook's change in policy by a reader who said the firm was refusing to remove a page showing a clip of a masked man killing a woman, which is believed to have been filmed in Mexico. 
  
 It was posted last week under the title, Challenge: Anybody can watch this video? 
  
 Image caption Some Facebook users complained about a video showing a decapitation being allowed to remain on the site 
  
 "Remove this video too many young innocent minds out there shouldn't see this!!!" wrote one user in the comments section below. 
  
 "This is absolutely horrible, distasteful and needs to be removed... there are too many young minds that can see this. I'm 23 and I'm very disturbed after seeing a couple of seconds of it," wrote another. 
  
 The social network later confirmed it was allowing such material to be posted again. 
  
 "Facebook has long been a place where people turn to share their experiences, particularly when they're connected to controversial events on the ground, such as human rights abuses, acts of terrorism and other violent events," said a spokeswoman. 
  
 "People are sharing this video on Facebook to condemn it. If the video were being celebrated, or the actions in it encouraged, our approach would be different. 
  
 "However, since some people object to graphic video of this nature, we are working to give people additional control over the content they see. This may include warning them in advance that the image they are about to see contains graphic content." 
  
 The firm also disabled the adverts for third-party products that had been appearing alongside the video. 
  
 Advisers concerned 
  
 Media playback is unsupported on your device Media caption Stephen Balkam, Family Online Safety Institute: "A beheading clearly crosses a line" 
  
 Facebook originally pulled decapitation videos after the Family Online Safety Institute - a member of its Safety Advisory Board - complained that they "crossed a line". 
  
 The charity's leader Stephen Balkam told the BBC he was surprised by the latest development. 
  
 "I would have expected a heads-up on this," he said. 
  
 "I went to have a look at the video and there's no warning label nor is there any condemnatory context. It's just sort of up there and the first image you are presented with is a woman's head being held by a guy. 
  
 "I'm very unhappy that these have gone back up and that they have gone up without any warning. First thing tomorrow morning I intend to raise this with Facebook." 
  
 Another of the board members, London-based Childnet International, said it also had concerns. 
  
 "Such content should be taken down," said its chief executive Will Gardner. 
  
 "There is a need to raise issues happening around the world, there is that argument, but some content is horrific. 
  
 "We would want to see steps to try and protect people from coming across such content. I'll tell Facebook what our view is, absolutely." 
  
 'Profoundly shocking' 
  
 Decapitation videos are available elsewhere on the net but critics have raised concern that Facebook's news feeds and other sharing functions mean it is particularly adept at spreading such material. 
  
 Image caption Some psychologists have raised concerns that watching graphic violence can harm the viewer 
  
 "I have seen some of these videos - they are profoundly shocking," said John Carr, who sits on the executive board of the UK government's Council on Child Internet Safety. 
  
 "Facebook has taken leave of its senses. Those videos will fuel countless nightmares among the young and the sensitive." 
  
 Google's rival Google+ social network has a more restrictive policy: "Do not distribute depictions of graphic or gratuitous violence." 
  
 The idea of Facebook issuing a similar blanket ban had, however, concerned some freedom-of-speech campaigners who had suggested it was the responsibility of parents - not the company - to protect children on the internet. 
  
 However, the French digital rights group La Quadrature du Net said it was still concerned that Facebook was reserving the right to take down the videos if it took issue with the way they were presented. 
  
 "It shows how much Facebook is in power to decide whatever will or will not be expressed through its network," said the organisation's co-founder Jeremie Zimmermann. 
  
 "It plays a profoundly anti-democratic role when it makes any such choice, whatever the limits are and whatever the good reasons it uses to make the decision. Only a judicial authority should be able to restrict fundamental freedoms according to the rule of law." ||||| The Facebook logo is pictured at the Facebook headquarters in Menlo Park, California January 29, 2013. 
  
 SAN FRANCISCO Facebook Inc has surreptitiously resumed allowing decapitation videos to be posted on its website, lifting a temporary ban it had placed earlier this year on content featuring graphic violence. 
  
 The world's largest online social network, with 1.15 billion members, said after a report on the BBC on Monday, that gory photos and videos are permitted on its site so long as the content was posted in a manner intended for its users to "condemn" the acts rather than celebrate them. 
  
 "Facebook has long been a place where people turn to share their experiences, particularly when they're connected to controversial events on the ground, such as human rights abuses, acts of terrorism and other violent events," the company said in a statement. 
  
 "People share videos of these events on Facebook to condemn them. If they were being celebrated, or the actions in them encouraged, our approach would be different," the statement said. 
  
 Facebook said it was working on developing new ways to let users control what content they see, including advance warnings that particular images contain graphic violence. 
  
 The BBC reported that many Facebook users were complaining about a video on the site showing a masked man killing a woman in Mexico. 
  
 Earlier this year, Facebook placed a temporary ban on content with graphic violence as it examined its policy in the wake of complaints about certain images posted on the website. 
  
 Facebook's current community standards forbid users from posting information that is threatening to others, as well as content that includes hate speech or is sexually explicit. 
  
 Groups with a record of violence or criminal activity are not allowed to maintain a presence on the site and Facebook says that "sharing any graphic content for sadistic pleasure is prohibited." 
  
 (Reporting by Alexei Oreskovic; Editing by Leslie Gevirtz) |||||

Facebook users might want to brace for bloodier newsfeeds: The site has quietly dropped a ban on gory photos and videos, including those showing beheadings. Gory videos were temporarily banned earlier this year, but the policy has now changed again, the BBC found when investigating a complaint about Facebook's refusal to remove a page showing a masked man killing a woman. Facebook says videos and photographs of graphic violence are allowed—but only if they are posted for users to condemn the acts, not celebrate them. "Facebook has long been a place where people turn to share their experiences, particularly when they're connected to controversial events on the ground, such as human rights abuses, acts of terrorism, and other violent events," a spokesman explains. "People share videos of these events on Facebook to condemn them." The company says "sharing any graphic content for sadistic pleasure is prohibited" and it is working on ways to warn users in advance about graphic material, reports Reuters. The company's ban on nudity, meanwhile, including any image showing a woman's "fully exposed breast," remains in place.