IANAL, so I can't make too many judgments about this particular case, but I agree. It's too sensitive an issue - nothing (except terrorism, ironically) gets people riled up as much as child porn.

What does worry me, though, is if there is any distinction between a bag checker finding what is definitely illegal vs. what could be illegal. In other words, I worry that this might empower and encourage TSOs to hand people to LEOs for things like carrying a lot of cash, which they were previously enjoined from doing.