Sounds like they're making a Precheck-like line for preclearance flights from Canada to the US.
Nexus card holders already have the option to skip the conventional security line, but the government and the Canadian Air Transport Security Authority have expanded the definition of trusted traveller to include not only Nexus holders but also Global Entry members, uniformed air crews and members of the Canadian and U.S. armed forces.
Trusted travellers — who go through "very diligent" background checks to ensure they are low-risk passengers — will not be required to remove clothing such as coats, hats, belts or shoes, and will be able to keep permitted liquids in carry-on luggage, said Raitt.