The invention of TSA also brought along a list of items travelers are prohibited packing in their luggage. Some items have restrictions on whether they can be packed in carry on or checked luggage. Recently, TSA announced that they would be adding 3 more items to the banned list for Michigan residents to be aware of. MLive reports:The banned items all relate to cordless curling irons and flatirons. TSA was very clear that the cordless curling irons and flatirons could be packed in their carry-on but could not packed in checked luggage.