do it of requiring proof of vaccination not just proof of a negative covid test for international or domestic travel. what do the airlines think about that? airlines hate the notion of having this for international travel and domestic travel. one top industry official tells me it would clobber the big numbers they ve seen lately. right now it is required for foreign nationals to show proof they are fully vaccinated to the airline before coming into the united states and customs and border patrol officials here at airport have also been required to show proof of a negative coronavirus test. a bit of a one-two punch there. now we are seeing the gap get a little narrowed. it was three days now one day. we ll see if the restrictions stay in place and the biden administration not hinting at anything new just yet and airlines and the industry would like to keep it that way. today covid cases in south africa jumped by more than 7,000 in one week. health officials do not yet know if it is