That's the beauty of the free market system: you can never predict what it'll come up with next. In this case, protest T-shirts for kids, its messages laced in steel to make a statement legible to scanner operators in airports everywhere.
Now that I think about it, hopefully Cargo Collective has some kind of affiliate marketing program with retroactive bonus payments.
I've got some ideas for other messages, though they wouldn't necessarily be kid-friendly. Like this one:
And no, it's not a veiled allusion to sexual preference: it's an unveiled allusion to the future of TSA inspections.
Hat tip: LB