Originally Posted by
SAN_Finn
The one thing about card board boxes is that the customs seem to think them as an invitation to pick you for screening. Bringing samples from Asia I've stopped using them because I would get screened every time even when I tell them that it's a "plastic injection sample with no commercial value". Easier to put the box in a bag and never get picked out. Not that I care about being screened but sometimes at LAX they take for ever.
Also notice that some food items are restricted from being brought to the Usa, not sure what kinda cereal you like
Have fun in Ireland.
The only timed I have ever been hand searched going into MBJ was when I brought a cardboard box of snacks and beach toys for my children. They hand searched every piece of baggage we had. I have no idea why a box would cause this. If the fuss was about the box, search the box.

Maybe they thought I was bringing in brownie mix.