London would be a likely first target of any nuclear strike - but depending on the kind of bomb used, the areas affected could reach far beyond the capital.
Castle BRAVO at 70:The Worst Nuclear Test in U.S. History – Sri Lanka Guardian slguardian.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from slguardian.org Daily Mail and Mail on Sunday newspapers.