I hope you enjoy your visit to the states Janlou. Where are you planning to travel to here in the States?
I would recommend you calling the Airlines and see what the requirement are for you caring your insulin supplies on the plane are . You know with the Security checks they have now they may require you to have something from the Dr stating that you are a diabetic and have to be able to inject yourself with insulin..Not sure but would not hurt to check.
MaryB