Terrorists don't have do do the laborious bomb part shopping any more to wreak havoc in a city. All they have to do is place a suitcase somewhere visible.

In today's case of Mannheim, it wasn't even a terrorist but only a harmless shopper that left his trolley unattended,1518,433951,00.html at a tram station. Police and bomb squad were called, the place had been wide-rangingly cordoned off and tram traffic stopped for two hours.