France said it had foiled a militant plot and arrested seven people in the southern port city of Marseille and the eastern city of Strasbourg. Interior Minister Bernard Cazeneuve said the seven people of French, Moroccan and Afghan origin, aged 29 to 37, had been detained on Sunday. Two were arrested in Marseille. Most of the others, he said on Monday, were arrested in Strasbourg - a city where one of oldest and largest Christmas markets is set to open this week. “An attack has been foiled ... The scale of the terrorist threat is enormous and it is not...