Concerns over the new omicron variant, it tightened that time line as you mentioned from three days to one day for this testing requirement now. airlines say that they are going to comply with this, they will be checking for those negative coronavirus tests, but they pushed back on how effective this is really going to be. this is what united airlines ceo scott kirby told me. >> the reality is omicron is already out of south africa, already escaped, it is on every continent. covid is unique, we need to learn to live with it, but we won't by simply locking down and shutting borders. the right a...