As President Trump threatened to slash American funding for the United Nations this spring, diplomats from around the world met privately at a lakeside resort in Switzerland to weigh painful spending cuts.One proposal hinted at the potential cost of America’s withdrawal: What if the United Nations cut funding for human rights investigations?The ambassadors of China and Cuba, which have long faced scrutiny over their own rights records, were the ones pushing to limit inquiries into government-sanctioned abuses like torture, war crimes, and jailing of dissidents, according to two diplomats who attended the meeting of the Human Rights Council in May in Switzerland.