But  how  do  we  know  it’s  news?  

h"ps://twi"er.com/nic0/status/291464384394436608  

A  passenger  plane  crashing  into  the  Hudson  river  

h"ps://twi"er.com/jkrums/status/1121915133  

This?    

h"p://www.youtube.com/user/MrNuclearCat  

People  stocking  shelves  at  Poundland  

Maybe  it  is  news  

Can  social  conversa?on  change  the  percep?on  of  a  na?on?  

You  have  to  give  back  

Introducing  GuardianWitness