Suicidal attack on Russia a month and a half of Sochi winter games

Almost on the eve of the Sochi winter Olympics, terrorism, surely Islamist, challenges Vladimir Putin. A woman has exploded the explosive charge she carried above in the lobby of the Volgograd train station, south of Russia and 700 kilometres from the Olympic headquarters. The balance of 16 dead is still short, so it could have caused the explosion if the terrorist had arrived on the platform.