My mum was in the U.S. on a RTW ticket that was ticketed in BKK. On each of her U.S. domestic segments, her checked luggage had to go through x-ray machines so she had to wait for that to happen before getting her boarding passes. Then at the gate, she was checked again (probably did not have *CLR* on her BP).

She was told by one agent that because she has an international ticket, she has to get checked. I wonder how they determine that? Anyone else with the same experience?