saying the safety of londoners must come first. some 6,500 people were expected to attend. british prime minister boris johnson decided against tougher covid restrictions but cautioned that people should be smart about how they ring in the new year. >> i think everybody should enjoy new year but in a cautious and sensible way. take a test. ventilation. think about others. but above all, get a booster. >> reporter: in paris, the traditional fireworks display over the champs-elysees has been called off, and officials have implemented a mask-wearing policy in outdoor public spaces starting friday. and in atlanta, the new year's eve's peach drop has been canceled for the third year in a row as positive cases are on the rise in georgia's capital city. but to the delight of many, the fireworks in sydney will go on