Analyse @NBCNews's tweets
TSA says it is "exercising a contingency plan" at Baltimore/Washington Int'l Thurgood Marshall Airport "due to excessive callouts."
Checkpoint A was closing at 5:35 p.m. ET.
"Passengers should arrive early for evening flights. Contact airport and airlines for updates."
Checkpoint A was closing at 5:35 p.m. ET.
"Passengers should arrive early for evening flights. Contact airport and airlines for updates."