It is clear that social media is now an indispensable part of the toolkit for anyone involved in modern conflict, but it also seems likely that its impact will help shape military tactics and decision making in the future. Political commentators occasionally refer to the 'CNN effect', where emotive TV pictures encourage governments to both enter and exit wars and humanitarian disasters.
Over the past four weeks the world has watched a humanitarian tragedy unfold in Gaza. For UN staff like me it has been particularly tough. Nine of our schools have been attacked, 11 of my colleagues have been killed. They include Ahmed Mohamed Mohamed Ahmed, a school principal, Inas Shaban Derbas, a 30 year-old teacher and the youngest, Abdallah Naser Khalil Fahajan, who at 21 was a school attendant. UN chief, secretary-general Ban Ki-moon called the most recent attack on Sunday, which took place next to a boys' prep school in Rafah and led to nine deaths including that of a colleague: "a moral outrage and a criminal act."
The conventional Westminster bubble accounts of Sayeeda Warsi quitting the government rely on unpleasant Tory spin questioning her motives. In fact there is a much richer Warsi story to be written about the multiple complexities of the British Muslim communities - the plural is important - which cannot be reduced to the horrors of the Gaza conflict.
What can anyone from the outside do in such circumstances? In the short term the need is for maximum pressure for a ceasefire and for the provision of humanitarian aid. Once the violence stops, we have to get to grips with the underlying problems. This is not just about restarting the same old peace process and hoping it will go somewhere this time. There is little or no chance of that, unless there are real changes of personalities and policies on both Israeli and Palestinian sides. I would start by suggesting we all face up to four realities.