Parties to a U.N. treaty banning nuclear weapons warned of the "existential threat to humanity" posed by nuclear arms and reaffirmed their commitment to the "prohibition and complete elimination" of the weapons in a declaration they adopted at the end of their five-day meeting on Friday.While a draft of the declaration of the parties to the Treaty on the Prohibition of Nuclear Weapons in New York stated opposition to nuclear sharing, whereby countries host nuclear bombs, such an explicit reference to the practice was removed from the final text.The statement, which instead expressed regret …READ FULL ARTICLE