already-in-place dynamic zero covid strategy, the strict controls in place here in the territory. back to you. >> kristie lu stout in hong kong. laura? >> this week a major diplomatic test for vice president kamala harris. she will attend the munich security conference meeting with u.s. allies all in the hopes of deterring russia from invading ukraine. cnn's jasmine wright joins us from washington. jasmine, what exactly is the vice president's mission on this trip? >> reporter: the trip will be all about reaffirming the u.s.'s commitment to nato, its partners and of course to ukraine. and it could not come at a more critical time. i could not emphasize that enough. we heard national security adviser jake sullivan saying we are well within a window of attack here. secretary of state antony blinken said it could come before the olympics sunday. it starts on friday. the vice president has a big task here, a very big diplomatic test as you said.