New York's newest park delights visitors US ambassador to return to Moscow this week: state department Brazil tops 500,000 deaths from COVID-19 Biden to host Afghan president amid US withdrawal Many factors behind rising food prices, insecurity in US Xi congratulates Guterres on re-election as UN chief Scientist opposes Jon Stewart's backing for lab leak theory Unvaccinated Americans seen at stake of more contagious COVID-19 variant Dow, S&P post worst week in months New permitless carry law big blow to gun control in US Texas NASA reports trouble with Hubble Space Telescope Travel restrictions easing for fully vaccinated Canadians in early July Tulsa Race Massacre: America's Black Wall Street met heartbreaking end Experts warn less vaccinated areas more at risk for highly contagious Delta variant US Fed Chair Powell says pandemic continues to pose risks to economic outlook US prepares new sanctions against Russia over Navalny US hitting encouraging milestones on virus deaths and shots Wall Street snaps back following worst week since February Delta variant getting foothold in US