ABC World News Tonight With David Muir
>> reporter: tonight, the country roaring back to life for the unofficial kickoff to summer. americans celebrating their first major holiday since the vaccine rollout. >> i'm feeling free! no masks. >> reporter: over the weekend, an estimated 34 million people hitting the roads, and air travel shattering expectations. more than 7 million people screened at airports between thursday and sunday. >> this is why this airport is open. this is why these new flights are happening. because people are traveling. they're able to travel. and it's because of the vaccine. >> reporter: from coast to coast, ...