US Conducted 1054 Nuclear Tests Between 16 July 1945 and 23 September 1992 the United States of America conducted (by official count) 1054 nuclear tests http://nuclearweaponarchive.org/Usa/Tests/ That means an average of about 22 per year. And now the US wants to represent the world outraged because the DPRK conducted one lame test.
While statistically true, that is a very simplistic point. Do you know more countries than just the US see a nuclear N. Korea as a threat? I think you are greatly missing the point here.