Comparing this to myself, I often carry two cell phones, I assume my USB drives are not infected, but have no idea if they are and if they are I wouldn't be able to tell based on what I understand of infections that live in the firmware, and when I was much younger, in my teens and early 20s, I definitely snuck into quite a few nice swimming pools at hotels and clubs, along with every one of my peers! I also snuck into a major party presidential convention once because why not, and it was educational and interesting and democratic to do so anyway.
I don't have two passports, but I've heard a lot of people do.
So this all sounds dodgy when they report on it like that, but there's also a chance she's just someone going for a swim. In which case though trespassing charges and false statements charges are still legit.
Of course there's more to the case than this, she changed her story multiple times and eventually said that a person unknown to her had asked her to fly from Shanghai to Florida in order to speak to Trump. I think it would be a waste of time to try to get to the bottom of what she was up to, best way to handle this is get a quick conviction and permanently deport her back.