Impact of social medias can be considered as a family :
   
    just imagine , a mother and a father ; first the mother stay at home and register all the information at home , she s not going to much outside and just follow just what she heard from people she see in the neighboorhood , at the end of the day , the men bring informations from  outside , he lived those things so he know , the value of the information ,

AT the end of the day there is like a CROSS EXCHANGE of informations ,
      the day after, childrens are going to hear the discussion , and gonna believe the parent they prefer , usually the mother , because she stay close to them etc ...


    in my example , i want to show an idea we can compare to the society , intern and extern facts , but because you are from a country , you prefer to believe what your compatriots said because you feel in security , that's where we can see the  manipulation of the media , because of this false trusting relationship , based on fear ...
     im coming to my example again , if childrens follow all those informations , like the father's , they gonna be aware of the reality ...
   
 so for me , for important news , people should based them researches on others sources to get sure of what they are looking for ...

   i do not bring any answer but just give my point of view , and try to show how we should be informed ...