The United States aims to denuclearize North Korea by the end of President Donald Trump's first term in January 2021, a senior State Department official said Thursday.Denuclearization involves removing nuclear warheads and fissile material, destroying intercontinental ballistic missiles, and permanently freezing any other weapons of mass destruction programs, the official told reporters."In our view, it is still doable within the president's first term, and that's what we're pushing very hard with our North Korean interlocutors to achieve," the official said, speaking on condition of anonym…READ FULL ARTICLE