Thomas L. Friedman: Make America Immune Again

If Joe Biden is looking for a bumper sticker for his campaign against Donald Trump, I’d suggest this one: “Make America Immune Again.”This pandemic has both exposed and exacerbated the fact that over the last 20 years we as a country have weakened so many sources of our strength. We’ve simultaneously eroded our cognitive, ecological, economic, social, governance, public health and personal health immune systems — all the sources of resilience we need to get through