Comment by JoshTriplett

You can be compelled to provide fingerprints based on a warrant; I'm unsurprised (and not particularly bothered) that you can be compelled to use them on your own device. If you care about security, don't use a fingerprint alone; at most, only use it as a second factor for two-factor authentication. More generally, don't use anything that removes your ability to make a choice under duress, in whichever direction you see fit, based on what you're protecting and what you're being threatened with.

I find the ongoing case of someone being jailed indefinitely for refusing to supply a passphrase far more concerning than someone being compelled to supply a fingerprint.