of the zero covid tunnel. i m joined now by professor hoo wan yen choong from seton hall university. he is the author of toxic politics: china s environtmental health crisis and its challeneg to the chinese state. this is a remarkable move by beijing. how much of a climb down is this for president xi? well, i think this is indeed a dramatlc well, i think this is indeed a dramatic change remember thatjust dramatic change remember that just last dramatic change remember thatjust last month, for official media is still talking about optimising zero covid-19 still talking about optimising zero covid 19 and ways of 20 new guidelines and they re still saying that there is no policy relaxation and now