For first time since Christmas, TSA screened less than 1M travelers at airports in U.S.

TSA officers wear protective masks at a security screening area at Seattle-Tacoma International Airport Monday, May 18, 2020, in SeaTac, Wash. Monday was the first day that travelers at the airport were required to wear face coverings in the public areas there. The Port of Seattle has encouraged its employees to wear face coverings, and all federal agencies that operate at the airport require their employees to wear face coverings. All airlines operating at SeaTac require employees and passengers to wear face coverings. (AP Photo/Elaine Thompson)