Between lower COVID numbers and more vaccine flowing that Americans are feeling increasingly comfortable taking to the skies. The fast uptick in travel caused Delta, over the weekend, to run out of pilots leading to cancelled flights and the airline temporarily filling middle seats.  United Airlines is facing a similar problem, saying it needs to hire pilots again.  The TSA reported today over 6 million people went through airport checkpoints. It comes as doctors keep warning that Americans can't let their guards down yet and that all of this sudden travel without enough people vaccinated could mean a big increase in cases looming