It's just how they work, and how they have worked for a long time. It doesn't matter whether they're on Earth or they're on some alien planet dealing with more uncertainties than anything else.

He thinks he spots a flash of red just on the edge of his peripheral vision, but his attention is drawn by something inside the room, so he keeps going. When she eventually asks him a question, he's quick to respond.

"Could be something, or it could be nothing, but either way, I don't trust it." Not that red swirling mist contained inside a canister screams trustworthy, but still. Details.