Privacy

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The government might use your picture for something nefarious in the future we can't even think of an example of besides real-time tracking. ooooOOOOOoooOooo.

You are on candid camera every time you're in the airport guys. You're probably carrying a tracking device in your pocket already. This article doesn't say anything about anything, it's slop.

Oh no the government might get access to my picture, which they already have access to!

This is basically fear mongering. You're worried about what they might do rather than what they are doing, which is not keeping the pics taken at kiosks. This is even mentioned in the article.

I'd certainly be worried about any plans they have, but skipping the pics now isn't doing anything for either party unless you don't believe what they say. Which is fair enough, but you'd need to provide a reason to doubt it.