as the nation faces a surge in covid cases, it s also seeing a surge in air travel. the tsa screened more than 2 million passengers at u.s. airports on saturday for the third day in a row, the number of travelers over the past few days is nearly the same as pre-pandemic levels, suggesting that americans are not canceling their holiday traveling plan as mid-this covid surge. how is the world handling this surge? in cities across europe, thousands of people are protesting stricter covid protocols. in paris crowds came out against france banning large outdoor events on new year s eve, the annual fireworks have also been canceled. meantime in germany, high case numbers there have led the government to reimpose strict health restrictions in some regions including barring unvaccinated people from restaurants, cinemas, and other nonessential facilities. let s get a check on some other cities over in europe. let s begin with cnn s scott