stars. a look at why the unvaxxed superstar may not be welcome down under. welcome to "the lead." i'm jake tapper. we start in the health lead. americans are left scratching their heads once again after the cdc attempted to clarify its new isolation guidance, again. a week ago, the agency changed the isolation period for asymptomatic covid positive individuals reducing it from ten days to five, plus five days of wearing a mask. many in the medical community were, at that point, shocked the cdc did not recommend a negative covid test as a condition to re-enter the world. so the cdc went back, revised its guidance and now the cdc says take a test. if you want to. which is not really a recommendation or guidance. and only further muddies the waters. to be fair, part of the problem with this latest confusing guidance by the cdc is that there are currently not enough