Writing in the Tamil Guardian today, Britain’s Leader of the Opposition, Ed Miliband, said Premier David Cameron, having rejected calls, including by the Labour Party, to boycott this week’s Commonwealth summit in Colombo, should now ensure Sri Lanka is not permitted to chair the Commonwealth for the next two years. The full text of Mr. Miliband’s opinion follows: The Prime Minister flies to a summit in Colombo today amidst growing and continuing concerns about Sri Lanka’s human rights record after two decades of civil war. An estimated 40,000 civilians died in that brutal conflict and yet there has still been no investigation into allegations of war crimes because the Sri Lankan government has so far refused to carry one out. Instead of making progress, the situation in Sri Lanka seems to be getting worse. Last month, Britain's cross-party foreign affairs select committee criticised the scant evidence of progress in political and human rights.