Originally Posted by
DevilDog438
Yup, that clears it up (the flying on UA/CO, which I thought based on your profile)...that would be the D C/P, one of the three with WBI systems (A/B [WN] and D have them; C & E still do not [hopefully, they will not get them anytime soon]).
WBI? The new radiation scanners? We didn't see those and I guess we'll have to look forward to showing up early at our home airport, SEA to allow for opting out. I didn't notice going through anything special at BWI this morning.