SEATAC Airport was reportedly (per twitter travelers) on lock down for awhile today. Flights were grounded and folks on planes were not allowed to deboard. Rumor was that somebody tried to break through security. https://twitter.com/cainclaxton/status/1079064141543858176
BTW - I cannot find any reports of this on MSM
17 you say…
Also SeaTac airport was on lockdown for awhile today