More recently, and in relation to Syria, it was discovered that between 2004 and 2010, Britain had issued five licences for the export of sodium fluoride which can be used to make sarin, the most potent of nerve agents, used in the chemical weapons attacks in Syria in 2013. Further such licences were granted in 2012.
Such radical thinking on domestic and foreign policy highlights the gap between Corbyn and mainstream social democracy, a big plus for his followers, who are fed up with centrist politics. Every generation challenges received wisdom.
The recent civic commemoration in Westminster of the 26th anniversary of Anfal may come to be seen as a milestone in Anglo-Kurdish links thanks to the British Government's decision to send a minister to the event for the first time.
Last week I visited the Domiz refugee camp for the third time in six months and saw many children at school and play. Once again, I was struck by their cheeriness and resilience. I wanted to find some of the children I met in June but the camp has mushroomed since then from 50,000 to 75,000 so it would have been difficult.
The point is not just that missile strikes won't prevent Assad from carrying out attacks with chemical weapons, nor will they help bring the Syrian conflict to a much-needed close, but that our political leaders in the west occupy very little moral high ground when it comes to condemning the use of such horrific weapons.
The feasibility of intervention was greater two years ago. I know that there is little public appetite for it in the west but inaction has empowered the radical jihadists. This has made it harder to achieve either a political settlement or a pluralist Syria which would protect the rights of minorities such as the Kurds, the Christians and the Alawites.
The public outrage led to Prime Minister John Major taking the lead in establishing a no-fly zone over the safe haven of Iraqi Kurdistan. It was a triumph for humanitarian intervention which was not, as it happened, sanctioned by the UN. It saved the Kurds.
It could be a massive symbol of change if Halabja were to become known worldwide for pomegranates rather than weapons of mass destruction. Fortunately, the land wasn't contaminated around Halabja.
Halabja is one of those place names, like Srebrenica and Katyn, that are etched into the collective memory of the extremes of man's inhumanity.
The more countries that mark the Kurdish genocide, through parliaments, governments, towns, civic groups, school talks and visits the better. There is a handful of memorials in Britain. There should be more. The 25th anniversary of Halabja has helped develop an international momentum that puts the past Kurdish Genocide and the future of the Kurdish people firmly on the map.