For me it is now in the pockets if just a metal detector, and in the carry-on bag if it is a body scanner. By the way - chips will set off the X-ray and cause a bag search. I put them in my pocket if not too many, or I seal chips in a plastic bag and take them out of the carry-on and put them in the bin with my shoes. But keep your eye on this bin. I had one friend who had a bag stolen by the TSA guys right out of the bin. He caused a big stink, the police were called. They of course sided with the TSA - Why do you have 16k in chips? But after a big enough stink the bag of chips suddenly appeared back inside his carry-on bag, even though the bag had been gone through 3 times.