> I see sudden spike in the market for burner phones. ANd a long-term opportunity for a company that can create a "burner" social media profile.

I am sure that some folks will try those things and it may work for a while, but the way things are going, it's not going to matter whether you bring your device, a burner, or nothing at all. All it will take is one more 911-like crisis and inevitable fear-mongering.

Then, your online profile is going to get mined along with everyone else's, continuously, by multiple state-level organizations who cooperate with each other-- whether you've booked travel or not.

By the time folks get to a border it will just matter of diverting anyone with a "red X" next to their name.