'So frustrating': Grave missteps seen in U.S. virus response

'So frustrating': Grave missteps seen in U.S. virus response: As a powerful new wave of infections sweeps the U.S. just ahead of Election Day, the nation's handling of the nearly 8-month-old crisis has been marked by what health experts see as grave missteps, wasted time and squandered opportunities by leaders at all levels of government.