"Can do." And they continue to walk. "This place keeps growing--it's like a maze." She quiets when they pass one section of wall--recently repaired. "That was the old DNA lab--destroyed in the accident a couple of years back."

"And this is the new one." Two technicians, both unfamiliar to her, are at work. One is using a pipet to remove liquid from a tube, another setting up the centrifuge.