[zmgsabst]

Bird poop on a crashed drone would also be “non-human biologics” on a “recovered crash”.

[instagraham]

Would that be worth reporting in Congress?

Believing so suggests there's a purpose to deliberately wasting everyone's time in such a hearing.

Or a simpler answer, Grusch is plain lying. But somehow, the stakes seem pretty high for him to do so here, unless he's confident of the whistleblower book money he could someday make off of this.