Lee Goldberg has the New Year's Eve forecast as millions are under alerts for heavy snow, rain and brutal cold, with freezing temperatures from Minnesota to New York; Reena Roy reports as authorities across the country are on high alert preparing for New Year's Eve celebrations; Jay O'Brien has details on the sweeping decision by the Trump Administration to freeze millions of dollars in federal child care funds for every state in the U.S.; Selina Wang reports as more than 20 million Americans brace for their health care costs to skyrocket after the enhanced ACA tax subsidies expire at midnight; David Muir shares his New Year's Eve message; and more on tonight's broadcast of World News Tonight.