Governments are more justified to censoring war news because:
ยท The Government know that everyone has a self-inflicted opinion on to which every right they have. So if they were to show such war news, citizens of different opinion on the matter at hand would argue and bicker over what is right in their own state of mind and in turn this situation could bring up riots and up risings and possible soil attacks made by the countries own people.
I hope this was able to help you, have a nice day. :)