5 killed in US helicopter crash US warns of COVID-19 surge, Biden to announce vaccination progress S&P 500 ends near flat; hedge fund default concerns hit banks Justice demanded on Floyd trial eve El Salvador receives 1st batch of Chinese-made COVID-19 vaccine Asian American woman, 65, assaulted in NYC Southwest Airlines orders 100 Boeing 737 MAX Jets, plus 155 options Zoom-free Fridays aim to combat video fatigue US lawmakers press Big Tech for internal research on kids' mental health 90% of US adults will be eligible for Covid shot by April 19: W.House CDC director 'scared' over rising virus cases Biden: 90% of US adults eligible for vaccines in 3 weeks Jury to hear opening arguments in Derek Chauvin trial for George Floyd's death Some Canadian provinces suspend AstraZeneca vaccine for people under age 55 COVID-related scams cost Americans $382m Uruguayan president gets first jab of Sinovac vaccine Canada's Asian community rallies against racism White House sees no federal mandate for COVID-19 vaccine verification After Colorado mass shooting, what US can learn from Finland on gun control