The head of the World Health Organization yesterday lamented the US decision to halt funding for the UN agency, promising a review of its decisions while sidestepping President Donald Trump's complaints about its alleged mismanagement, cover-up and missteps.<br />'' <br />''WHO Director-General Tedros Adhanom Ghebreyesus was on the defensive after President Trump announced a halt to U.S. funding that has totaled nearly a half-billion dollars annually in recent years. Mr. Trump claimed the WHO had made a disastrous decision to oppose travel restrictions as the outbreak spread. Countries and health experts around the world expressed alarm at Trump's move and warned it could jeopardize efforts to fight the coronavirus pandemic. <br />