activists and former lawmakers in hong kong and aggressive military maneuvers aimed at taiwan. >> this island is potential flashpoint for what their president calls a fight between authoritarian china and democratic taiwan, allied with the united states. >> reporter: number three -- >> protest rallies across russia in support of detained kremlin opposition activist, alexei navalny. >> reporter: russia's best-known opposition politician, sent to a penal colony, when he dared to return home, five months after a nerve agent attack. >> shortly before his detention, in a in a nalley saying he is not scared. >> reporter: number two, great hopes to end the covid-19 pandemic, ushering in widespread vaccinations. but the virus continued to mutate, killing millions of people around the world. the uneven vaccine rollout hasn't kept up with the speed of