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 == J-20 page being vandalized == 
 Hello Taroaldo, I add that there are three J-20 prototypes because the new prototype 2003 just came out one week ago. There are no articals about it but plenty of pictures. 

 Also, please lock the J-20 page, it is being vandalized again by trolls. 

 Thank you.  — Preceding unsigned comment added by     

 Hi, if you feel a page is being sufficiently vandalized to warrant page protection, you may request it at Requests for page protection. I do not have the tools to do page protections. Regards    "