The Johns Hopkins newsletter notes, "Simply put, the U.N. is the world's least effective international body. Despite its grand commitment to end threats to human security, such as interstate war, genocide, famine, internal war, disease and the proliferation of weapons of mass destruction, the U.N. has been surprisingly unsuccessful at achieving these ends" [2]. The UN's ineffectiveness has many underlying causes such as problems with the security council's balance of power, and their adhering to (accepting) every country's 'right' to govern itself how it chooses.
http://capitalismmagazine.com/2003/03/america-should-withdraw-from-the-u...