[sudomal]

Sarcastic or not, it's an important point. You are giving up a significant attribute of your identity to the protection of a US technology company. Whether that bothers you (or not) depends on how much you value your privacy.

[azinman2]

If they don't already have your fingerprints on file, which depending on where you live happens as a kid in case you go missing, get a drivers license, etc.

If the NSA wants to target you specifically, you're fucked no matter what unless you move to a cave. No point in being needlessly worried. I'm more worried about this causing someone to cut off my finger while stealing my phone than I am the NSA coming after me.