the fight between chicago leaders and its teachers union that we discussed before the break is one of many over testing standards. last night on the broadcast, dr. peter hotez, co-director of the texas children's hospital, said the cdc and administration were sending a mixed message, his words, on testing. the administration is acquiring half a billion tests, so everybody can get one. yet, the new cdc guidance on testing isn't actually advising people that they even need to do it. the agency is also still recommending cloth masks, although some medical experts say those don't protect against oat micron variant. all of which, leaves people trying to do the right thing with question, well, what is the right thing? i am joined now by arthur kaplan, director of the gigz of medical ethics at ny langone medical center. so, art, families left in the lurch tonight until the city and teachers union come to an agreement. from an ethics point of view,