serve the president. >> you got to make the dinner good, you know. first and foremost. but, you know, it's literally like being in the movie when you start to see all the secret service, all of the security. >> reporter: wong surprised me when he revealed he only gets about two hours notice that the president is on the way, and even then, the signal is indirect. >> you start to see little signs, the dogs come around, the navy chefs come into your kitchen. >> the military chefs come to make sure the president's food is safe and they watch every moment of preparation, adding to the anxiety. but allan wong says it's worth it. >> he has the menu before, which has five things on the menu. i do consider them foodies, they like to eat. michelle got the garden and she got a whole bunch of chefs together to support the farm to table movement. >> reporter: while the obamas