(Doug Mills | The New York Times) President Donald Trump stands by his desk during a Medal of Freedom presentation for the former football coach Lou Holtz, at the White House in Washington, Dec, 3, 2020. For Americans who won’t be able to return to work while the pandemic is still raging, a one-time payment of $600 is grossly inadequate, while for those who haven’t lost their jobs it’s unnecessary, Paul Krugman writes.