One of the consequences of the Iranian revolution has been an explosion of history. A country once known only from British consular reports and intrepid travelogues is now awash with historical documents, letters, diaries, grainy video, weblogs and secret police files of questionable authenticity.
Governments of rich countries spend some $6bn of tax money a year on disaster relief and development aid overseas, while each new earthquake, famine or tidal wave can attract 1,000 aid organisations, from the United Nations Children's Fund and Oxfam to the 'Jesus Brigades' of the American south and other charitable adventurers.
Unlike despotisms, modern democracies are not supposed promiscuously to accumulate property and then charge their taxpayers to maintain it. But that is what they do. Governments are always trying to extend their responsibilities and their estates, and it is very hard for parliaments to reign them in.