These tamper evident seals are not at the airports yet that is why they are not on your bag yet. Soon there will be red and blue tamper evident locks. At CAE we do not have the CTX machines yet, so I do not know exactly how that system works. I will give you some advice on the airports that are using the the EDT machines for screening Checked bags. You can wait and put your locks back on your bags. Or you can leave it unlocked, and we will lock it when we are done. If there is a situation were there is a lock on a bag that we need to get into, you will be paged to remove it. If you are not there in timely manner we will be forced to cut the lock. I feel badly about this but all bags have to be screened. Hope that this helps. I look forward to seeing you at CAE.