1) please quote your sources for the MCT at JFK T3 intercon-domestic
I will attach below an email received from delta customer service stating that the MCT is meant to be 105mins, this has been confirmed by expedia (my buddy booked the same ticket throught their website).

2) there is no way you can downplay the awful service delta is providing for its connecting passengers at T3. No, they were in no way "working" with CBP to process passengers faster (and the dl shepherder could have made the difference as in how the queus were organized and whether they could grant you a faster track, ie. lining up in the us-citizens line if you had a connection, would have been a solution), at one point the delta staff decided that three officers for non-Us citizens were too many, so we ended with only two serving at least 4 TATL flights, while having herds of non-us citizens in line with the even more certain fate of loosing their connections.
I understand CBP is beyond their control, but as you call it "pro activeness" and as myself, and hunderds of miserable and unaware passengers are calling it "common sense and decency". You may not be able to change things with the immigration staff itself, but then as an airline, you can certainly reschedule your flights or the itineraries your selling when you clearly know how bad the situation is. I don't see why they are allowed to sell these unconnectible itineraries and refusing to re-book you in advance when you and they know, that you'll end up taking the next flight anyway (in the best of all circumstances). I'm sure this is something everyone can understand, and does not involve talking to CBP or whatever you call it. We're not talking about pro-activeness, we're talking about fooling paying customers here (btw are you on DL payroll?).

Just pretending its none of your business and playing dumb, as the airline is not responible for BCP, is not exactly the best of all the approaches!

This one of the rare useful answers i got from the delta customer service via email (I have obscured all names for the sake of privacy and data protection, by the way I had subsequently rang up the international DL reservations number only to be told that the MCT did not apply to my case, also talking to a supervisor, and they would not help me in any way to rebook me in advance on the following flight on the JFK connection as the itinerary was "scheduled and guaranteed" (gd knows what ever that means in DL language), unless i wanted to pay a penalty for that):

"Dear Mr. XXXYY,

Thank you for contacting Delta Air Lines.

As per Delta Procedures, a minimum connecting time of 105@:-) minutes is needed between an international to domestic flight in John F Kennedy, NY. Since your flight does not meet the required connecting time, it will be necessary for you to contact our International Reservations department at 800-241-4141.

If you are calling from an area which restricts 800 number dialing capabilities, you can contact us at 404-765-5000, or use your local Delta Reservations phone number. Our worldwide reservations telephone numbers are listed on our website, www.delta.com.

You can navigate there by selecting the following from our home page:

Need Help?
Contact Us
Reservations

Your selection of Delta is appreciated, and we will always do our best to merit your confidence and support.

Sincerely,

Sharon XXXYYYZZ
Online Customer Support Desk
http://www.delta.com

Original Message Follows:
------------------------

Dear Sirs,

Thank you for your answer, however as per my previous correspondence (please see the below attached) I would be grateful if you could provide me with your Minimum Connecting Time for International to Domestic flight transfers at terminal 3, JFK airport, as the relevant information has not been made available in your previous email.

Yours Faithfully,

XXXYYZZ"