As the nation prepares to honor its dads this Sunday, recent research from UNICEF spotlights a stark reality that almost two-thirds of the world’s children less than a year old (nearly 90 million) live in countries where fathers are not entitled by law to take paternity leave. The U.S., which has nearly 4 million births per year, is one of eight countries with no national law guaranteeing paid parental leave for either moms or dads.