Originally Posted by
jamesteroh
As a DL PM, I will hate to see it happen at DTW since it seems like everyone there has a Delta Am Ex card and there isn't a separate lane for TSA precheck (it wouldn't be bad at places like LAS and LAX where there is a different line for prechecks).
If this does turn out to be the case then it wouldn't surprise me if American and United follow and start offering that benefit to their cardholders. When one airline started offering free checked bags on their card all the other airlines followed very shortly. Same when Delta started allowing credit card holders to board in zone 1, soon the othert airlines followed.
United already offers Premier access to United Club card holders and priority baggage handling and security line. Delta would only be following suit.