Nowadays, it's no ma'am, check your shoes. And like --  But then it wasn't -- they didn't have any, but the guy had -- I said, what kind of salts of potassium do you have? You know.
要是现在，那就是“没门， 脱鞋检查”。而且 —  那时候也不是说 — 他们根本没有那些化学药剂。那个人有 — 我进去问：你们有什么样的钾盐？你知道，