It's the statement which follows that question which tends to create some ire in many non-American people. It's as if the nation which introduced nuclear weapons - and actually exploded two of them on their then enemy Japan - is regarded as a responsible nation whilst others are not.
The USA, then the USSR, the UK, France, Irael - all have nuclear weapons. Then along came China. Now the Iranians and North Koreans feel they should have 'em, too.
"I'm really bothered by the way some nations behave with their testings of destructive missles." - your words! What about the good old USA. How many Atom Bombs were exploded not only in Nevada but in in such places as the Pacific Ocean poluting the environment for hundreds of years.
Make no mistake about it, Autoelectrical. Your nation is one of the most dangerous in the world.