( for example hurricane sandy in october 2012 ) see new york 1968 building code `` rs 9-6 '' [ 93 ] wireless detonators were used in the madrid train bombings of 2004 http : //en.wikipedia.org/wiki/2004_madrid_train_bombings [ 94 ] sol-gel is a technique for combining nano-materials http : //en.wikipedia.org/wiki/sol-gel * * * * chapter 10 footnotes [ 95 ] in the summer of 2001 , mohammad atta was treated for a skin rash consistent with an anthrax infection .