Despatches from around the world. In this edition: Will Grant on the protests in Mexico City as families try to find out what happened to a group of students seized by the police; the Indian prime minister may have called for more protection for the country's women but Razia Iqbal, in Western Harayana, says many still suffer appalling violence; what's Qatar really up to in Syria? Frank Gardner sets out over a flat featureless desert in his attempt to find out; Hamilton Wende visits the casbah in Algiers and explains why he finds it filled 'with half-remembered pockets of history and of war' and where in these islands is the very best place to take a look at Venus and Mars? Christine Finn boarded a ferry and went to find out.