I read a message on cruise@ddicts message board about the airlines not allowing insulin syringes onboard the plane. I figured that SURELY this could NOT be right! I contacted Delta & they confirmed that you are allowed ONE insulin dosage on the plane. Those of us who are diabetic will understand how dumb this idea is. One dosage will not be enough for those of us with early morning flights & considering that our luggage will probably not be delivered to your stateroom until very late afternoon. Plus, I would NEVER take the chance of packing my diabetic supplies in a packed bag that could possibly be lost. Talk about ruining your trip!! Anyway, the airlines say you must have a letter from your doctor, on his/her letterhead stating you need more than one dosage. I just thought others would like to know this info.