In Sri Lanka's Tamil north on day one of the Commonwealth conference, David Cameron tells Channel 4 News he wants to focus on the human rights issues that have dogged the run-up to the summit.
Mr Cameron is in Jaffna, in the traditionally Tamil part of Sri Lanka, and is accompanied by journalists including Jon Snow. His first visit in Jaffna was to a library , where he met with Chief Minister CV Vigneswaran.
There were many women in tears hanging onto journalists, including myself, begging us to take letters and take them to David Cameron.Jon Snow
However, outside there were two protests taking place, as Jon Snow describes.
"The first, very ordered and very similarly printed protest banners. Some of the slogans read 'time to investigate British colonial atrocities'," he said.
"Then our attention was drawn to a rather bigger demonstration much further down the road and that involved a large number of women holding photographs and letters depicting what had happened to their lost loved ones.
"There were many women in tears hanging onto journalists, including myself, begging us to take letters and take them to David Cameron.
"In the end there were an armful of letters pleading for some sort of action,. But most of these young men as they were when they surrendered to the military, have never been heard of again."
As the prime minister went to leave the protesters broke through police blockades and surrounded the vehicles that were leaving.
As Channel 4 News showed in the film White Van Stories, shown on 14 November, enforced disappearances of Sri Lankan people continues to this day.