new round of strict travel restrictions went into effect facing any traveler flying into the u.s. now, every single traveller who flies into the u.s. must test negative for covid within one day of departure, and this applies to every traveler regardless of vaccination status or citizenship. we re covering everiage. cnn s aviation correspondent put muntean is at dulles international airport and senior medical correspondent ecohen is with us as well. pete, let s start with you. a lot of confusion over what the requirements are and who it applies to exactly. what more can you tell us about these new restrictions? well, so far so smooth, ana. what s so interesting is that flights that are in the air right now will be some of the first that will have to comply with the new shift. passengers coming into the u.s. will now have to get tested one day before their departure, and the cdc puts it like this. your flight is on a unin. you have to get tested any time on sunday, so this is a one-day