TSA last year announced a program called "Managed Inclusion," where if passengers from the general screening line agreed to a K9 check they'd receive a PreCheck level of screening.

TSA's larger goal is having 25% of all travelers receiving PreCheck screening. Not something most here would like as the PreCheck lines will swell. This fall expect to see a big push for TSA PreCheck as many more airports begin rolling out the program in September and October.

An additional problem at BOS is on most occasions it's quicker to go thru the general lane immediately to the right of PreCheck as the PreCheck ID clerk looks at both PreCheck and non-PreCheck ID's.