u.s. secretary adviser jake sullivan meeting with the chinese, senior chinese diplomat. what can we expect from this meeting? how much do you think the conversation will be centered on the in curses of china on taiwan we have been covering almost daily on the show now? >> reporter: it will certainly be raised in discussions later today. during the deepening rivalry between u.s. and china, we know talks are taking place today between the national security adviser and china's top diplomat taking place in zurich, switzerland. this is the first time they will be meeting face to face since that previous summit that took place in alaska in march which descended into the scenes of confrontation that were caught on camera. now, these talks today in zurich coming at a time of high tension especially in regards to taiwan in recent days, china has been carrying out an unprecedented number of incursions by its air force into the air defense zone of taiwan. in fact, cnn has counted some