From 1942 to 1964 the US actively encouraged American farmers to hire tens of thousands of migrant workers to come to work legally from Mexico - they were known as 'braceros'; also, when Moscow invited thousands of foreign students to attend an International Youth Festival in the former USSR; a witness to the funeral of the Duke of Wellington; plus Arafat's final weeks and why was JKF's killer allowed to defect to the Soviets?

Photo: A group of Mexican Braceros picking strawberries in a field in the Salinas Valley, California in June 1963 (Getty Images)