CX838 receives jet fighter escort into YVR this afternoon

[Pugilistic Animus]

I hope the media does not go [or try to go] too deep into the 'procedures' there are other links on that media site...that when looked at maybe a little to close

And what did the escorting achieve?

the Canadian AIP and the FAA AIM allow any pilot to request an intercept and escort...that's published in the relevant air publications