Mr. Ban Ki-moon (U.N. Secretary-General) open his mouth and warn the North Korea, But.....?

As a Political Analysist, I like to ask a small quotation,

America is facing problem with North Korea, Mr. Ban Ki-moon (U.N. Secretary-General) open his mouth and warn the North Korea,
So,
Why Mr. Ban Ki-moon can't warn Burma Monks who burn the lives?
Why Mr. Ban Ki-moon can't warn Burma Govermant to fail to control the current situation?
Why Mr. Ban Ki-moon can't warn or advice Sri Lankan Government to control BBS and other extremist on the current issue?
Why Mr. Ban Ki-moon can't involve in the Palestine - Israel war?
its not shame on U.N?
its not shame on international justice and peace?
Changes, its possible..............