we asked bonnie glaser with the center for strategic and international studies about biden's visit to the region and how much will the identification zone dominate the talks. >> i think this new air defense identification zone that china has announced will be a very important topic of discussion. it has created new tensions between china and the united states. it has certainly increased the friction between china and japan. and now introduced new tensions between china and south korea. and created the potential for an accident in the region that could be quite dangerous. it is the timing of the announcement and the extent of this zone that i think is quite worrisome to the united states as well as the procedures that the chinese have announced that apply to aircraft that are flying through the zone. and therefore i think that the united states does not expect that china will rescind this zone. but i think the u.s. hopes that we can influence how the chinese actually implement these procedures. the circumstances under which they intercept aircraft flying through the zone. i think he wi